94
94
Jul 20, 2013
07/13
by
Renata Kallosh; Sergey Prokushkin; Marina Shmakova
texts
eye 94
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comment 0
We have constructed a bulk & brane action of IIA theory which describes a pair of BPS domain walls on S_1/Z_2, with strings attached. The walls are given by two orientifold O8-planes with coincident D8-branes and `F1-D0'-strings are stretched between the walls. This static configuration satisfies all matching conditions for the string and domain wall sources and has 1/4 of unbroken supersymmetry.
Source: http://arxiv.org/abs/hep-th/0107097v1
45
45
Jul 20, 2013
07/13
by
W. A. Perkins
texts
eye 45
favorite 0
comment 0
De Broglie's original idea that a photon is composed of a neutrino-antineutrino pair bound by some interaction was severely modified by Jordan. Although Jordan addressed an important problem (photon statistics) that de Broglie had not considered, his modifications may have been detrimental to the development of a composite photon theory. His obsession with obtaining Bose statistics for the composite photon made it easy for Pryce to prove his theory untenable. Pryce also indicated that forming...
Source: http://arxiv.org/abs/hep-ph/0107122v1
58
58
Jul 20, 2013
07/13
by
Joe Kilian; Erez Petrank; Charles Rackoff
texts
eye 58
favorite 0
comment 0
We consider zero knowledge interactive proofs in a richer, more realistic communication environment. In this setting, one may simultaneously engage in many interactive proofs, and these proofs may take place in an asynchronous fashion. It is known that zero-knowledge is not necessarily preserved in such an environment; we show that for a large class of protocols, it cannot be preserved. Any 4 round (computational) zero-knowledge interactive proof (or argument) for a non-trivial language L is...
Source: http://arxiv.org/abs/cs/0107003v2
73
73
Jul 20, 2013
07/13
by
D. Fargion; M. Grossi; P. G. De Sanctis Lucentini
texts
eye 73
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Ultra High Energy Neutrino scattering on Relic Light Neutrinos in Dark Galactic or Local Group lead to Z and WW,ZZ showering: the nucleon component of the shower may overcome the GZK cut-off while the electro-magnetic tail at TeVs up to EeVs energy may solve the Infrared-TeV cut-off in a natural way. Different Gamma TeV puzzles may find a solution within this scenario: new predictions on UHECR spectra in future data are derived.
Source: http://arxiv.org/abs/astro-ph/0107203v1
4
4.0
movies
eye 4
favorite 0
comment 0
Topics: KBS News, news930
This is a New Zealand classification of Please 12 More Sexual Superstars . Title Please 12 More Sexual Superstars Other known titles Please 12 Publication number 100739 Application number 10100361 Medium Video Recording VHS/PAL Current decision R18 Objectionable except if the availability of the publication is restricted to persons who have attained the age of 18 years. Descriptive note Explicit sex scenes Associated documents 14276_18_4_27008.pdf (Register Page) Registration date 2001-07-11...
Topics: New Zealand, censorship
43
43
Sep 22, 2013
09/13
by
C. P. Burgess; M. Pospelov; T. ter Veldhuis
texts
eye 43
favorite 0
comment 0
We propose the simplest possible renormalizable extension of the Standard Model - the addition of just one singlet scalar field - as a minimalist model for non-baryonic dark matter. Such a model is characterized by only three parameters in addition to those already appearing within the Standard Model: a dimensionless self-coupling and a mass for the new scalar, and a dimensionless coupling, \lambda, to the Higgs field. If the singlet is the dark matter, these parameters are related to one...
Source: http://arxiv.org/abs/hep-ph/0011335v3
29
29
Sep 19, 2013
09/13
by
Craig T. Snydal
texts
eye 29
favorite 0
comment 0
In this paper we describe how to give a particular global category of rings and modules the structure of a relaxed multi category, and we describe an algebra in this relaxed multi category such that vertex algebras appear as such algebras.
Source: http://arxiv.org/abs/math/9912075v2
27
27
Sep 22, 2013
09/13
by
G. Aldazabal; S. Franco; L. E. Ibanez; R. Rabadan; A. M. Uranga
texts
eye 27
favorite 0
comment 0
Intersecting Dp-branes often give rise to chiral fermions living on their intersections. We study the construction of four-dimensional chiral gauge theories by considering configurations of type II D(3+n)-branes wrapped on non-trivial n-cycles on T^{2n} x(R^{2(3-n)}/Z_N), for n=1,2,3. The gauge theories on the four non-compact dimensions of the brane world-volume are generically chiral and non-supersymmetric. We analyze consistency conditions (RR tadpole cancellation) for these models, and...
Source: http://arxiv.org/abs/hep-th/0011073v3
23
23
Nov 2, 2004
11/04
by
http://netfold.com/~vipec/
software
eye 23
favorite 0
comment 0
ViPEC takes a text-based description of the electrical network and performs an analysis in the frequency domain. The output is in the form of two-port parameters (S, Y or Z) with results presented on a user-defined grid and Smithchart. It can also be used to compute the input and output impedance and admittance as well as amplifier stability factors (Linvill & Stern).
Topics: linux, unix, software, GPL
49
49
Nov 4, 2004
11/04
by
http://www.muchosoft.com
software
eye 49
favorite 0
comment 0
MuchoFileInfo lets you drag-and-drop file(s) directly onto the MuchoFileInfo icon in order to make changes. MuchoFileInfo also remembers the file's position and its dimensions. In addition, MuchoFileInfo reinitializes correctly each time you select a file. Please read the included documentation for more detailed information. Note: MuchoFileInfo is fully functional on MacOS 9.0.4. Since it doesn't use any specific CPU or OS instruction, a 68K and a PPC version are provided, and it should work...
Topic: macintosh
11
11
Apr 3, 2019
04/19
by
Nessa Eull
image
eye 11
favorite 0
comment 0
Dyscrasite, Ag 3 Sb Description: Dyscrasite, Ag 3 Sb (silver antimonide), can be beautiful silver-white and metallic when fresh, but like many silver minerals it quickly tarnishes when exposed to air. So, this specimen (2.2 cm across) is dark gray, showing only a minor metallic luster. Dyscrasite is a silver-antimony alloy, and occurs in large amounts in some silver deposits. Rare valuable samples may consist of intricate and strikingly beautiful crystals and crystal aggregates. Location:...
Topics: geology, mineralogy
34
34
Oct 25, 2004
10/04
by
http://home.earthlink.net/~sottey/Myapps.html
software
eye 34
favorite 0
comment 0
DVDBase will help you keep track of the DVDs that you own and the DVDs that you would like to purchase. For each movie, you can record ratings, release and purchase dates, and much more.
Topics: palm pilot, palm pilot software, palm pilot downloads, palm, palm os, downloads, palm downloads
36
36
Oct 25, 2004
10/04
by
http://www.mobimate.com
software
eye 36
favorite 0
comment 0
Have you ever lent something out and then lost track of it? If so, this program can help you. IOUMate keeps track of the money and items that you lend and borrow.
Topics: palm pilot, palm pilot software, palm pilot downloads, palm, palm os, downloads, palm downloads
12
12
Apr 3, 2019
04/19
by
Darla Sondrol
image
eye 12
favorite 1
comment 0
Cobalt-rich arsenopyrite (danaite) and chalcopyrite from Bajados, Spain Description: Danaite, (Fe,Co)AsS, is a cobalt-rich variety of arsenopyrite. Here it is the dark gray mineral seen with minor tarnished gold chalcopyrite, CuFeS 2 (copper iron sulfide). The specimen, 2 cm across, comes from a mining disrict in Spain. Location: Spain. Near Bajados. Collection: University of North Dakota Mineralogy Collection #220. Tech details: 645 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera;...
Topics: geology, mineralogy
530
530
Jan 16, 2011
01/11
by
Gene Ween Band
etree
eye 530
favorite 1
comment 0
Gener (solo) July 11th, 2001 New Hope, PA @ John & Peters Place Sonic Studios Mics > Casio DA-7 DAT > CDR > EAC > FLAC 1. Intro 2. Now I'm Freaking Out 3. I Don't Want To Leave You On The Farm 4. Boing 5. She Wanted To Leave 6. Don't Get 2 Close (2 My Fantasy) 7. Help Me Scrape The Mucus Off My Brain 8. Back To Basom 9. The Golden Eel 10. She's Your Baby 11. Beacon Light 12. Flutes Of Chi 13. I'm Holding You 14. Birthday Boy (opening for Instant Death)
41
41
Sep 19, 2013
09/13
by
Carlos O. Lousto
texts
eye 41
favorite 0
comment 0
Here we present the results of applying the generalized Riemann zeta-function regularization method to the gravitational radiation reaction problem. We analyze in detail the headon collision of two nonspinning black holes with extreme mass ratio. The resulting reaction force on the smaller hole is repulsive. We discuss the possible extensions of these method to generic orbits and spinning black holes. The determination of corrected trajectories allows to add second perturbative corrections with...
Source: http://arxiv.org/abs/gr-qc/0010007v2
61
61
Jul 20, 2013
07/13
by
L. Turban
texts
eye 61
favorite 0
comment 0
The off-diagonal profile phi(v) associated with a local operator (order parameter or energy density) close to the boundary of a semi-infinite strip with width L is obtained at criticality using conformal methods. It involves the surface exponent x_phi^s and displays a simple universal behaviour which crosses over from surface finite-size scaling when v/L is held constant to corner finite-size scaling when v/L -> 0.
Source: http://arxiv.org/abs/cond-mat/0107235v1
236
236
Apr 20, 2019
04/19
by
Spawn Software
software
eye 236
favorite 1
comment 0
First person shooter game made in Pie in the Sky engine. Claire Stockwell inherits a mansion somwhere in the country. Soon after they moved in, she an her husband John encounter strange sounds and voices. One night, there are strange people outside the house, so John decides to go outside to see who they are. But he does not return... Claire tries to phone the police, but they just laugh at her. So she phones her brother, Jake D. Fens to come at once. Jake takes a cab to the mansion, but the...
Topics: Windows games, 3D Game Creation System, 3D GCS, Pie in the Sky
41
41
Jul 20, 2013
07/13
by
Michael W. Regan; Michele D. Thornley; Tamara T. Helfer; Kartik Sheth; Tony Wong; Stuart N. Vogel; Leo Blitz; Douglas C. -J. Bock
texts
eye 41
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comment 0
We present the first results of the BIMA Survey of Nearby Galaxies (BIMA SONG), an imaging survey of the CO J=(1-0) emission in 44 nearby spiral galaxies at a typical resolution of 6". BIMA SONG differs from previous high-resolution CO surveys in that: (1) CO brightness was not an explicit selection criterion; (2) a larger area (200" diameter for most galaxies) of each galaxy was imaged; and (3) fully-sampled single-dish CO data (55" resolution) were obtained for over half of the...
Source: http://arxiv.org/abs/astro-ph/0107211v1
56
56
Jul 20, 2013
07/13
by
Iskra Strateva; Zeljko Ivezic; Gillian R. Knapp; Vijay K. Narayanan; Michael A. Strauss
texts
eye 56
favorite 0
comment 0
We study the optical colors of 147,920 galaxies brighter than g* = 21, observed in five bands by the Sloan Digital Sky Survey (SDSS) over ~100 sq. deg. of high Galactic latitude sky along the Celestial Equator. The distribution of galaxies in the g*-r* vs. u*-g* color--color diagram is strongly bimodal, with an optimal color separator of u*-r* = 2.22. We use visual morphology and spectral classification of subsamples of 287 and 500 galaxies respectively, to show that the two peaks correspond...
Source: http://arxiv.org/abs/astro-ph/0107201v1
101
101
Jul 20, 2013
07/13
by
Eva K. Grebel
texts
eye 101
favorite 0
comment 0
After summarizing the characteristics of different types of dwarf galaxies I briefly review our current state of knowledge of dwarf galaxy evolution in the Local Group, for which we now have a fairly detailed although by no means comprehensive picture. All Local Group dwarfs studied to date contain an old population, though its fraction varies considerably. The majority of the dwarf companions of the Milky Way shows evidence for a common epoch of ancient star formation. Spatial variations in...
Source: http://arxiv.org/abs/astro-ph/0107208v1
105
105
Jul 20, 2013
07/13
by
Frank C. van den Bosch
texts
eye 105
favorite 0
comment 0
We present new models for the formation of disk galaxies that improve upon previous models by following the detailed accretion and cooling of the baryonic mass, and by using realistic distributions of specific angular momentum. Under the assumption of detailed angular momentum conservation the disks that form have density distributions that are more centrally concentrated than an exponential. We examine the influence of star formation, bulge formation, and feedback on the outcome of the surface...
Source: http://arxiv.org/abs/astro-ph/0107195v1
81
81
Jul 20, 2013
07/13
by
B. Aubert
texts
eye 81
favorite 0
comment 0
B^0-anti-B^0 flavor oscillations have been studied in 20.7 fb-1 of e^+e^- annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the Upsilon(4S) resonance. The event sample consists of one B^0 meson fully reconstructed in a hadronic decay mode, while the flavor of the recoiling B^0 in the event is determined with a tagging algorithm that exploits the correlation between the flavor of the heavy quark and the charges of its decay products. By fitting...
Source: http://arxiv.org/abs/hep-ex/0107036v1
74
74
Jul 20, 2013
07/13
by
ALEPH Collaboration
texts
eye 74
favorite 0
comment 0
Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z -> b-barb decays using inclusive final states is presented. High-performance tagging of b-barb events in a wide angular range is achieved using neural network techniques. An optimal hemisphere charge estimator is built by merging primary and secondary vertex information, leading kaon identification and jet charge in a neural network. The average charge...
Source: http://arxiv.org/abs/hep-ex/0107033v1
44
44
Sep 18, 2013
09/13
by
Charles D. Dermer
texts
eye 44
favorite 0
comment 0
We derive the maximum accelerated particle energy from first-order and second-order Fermi acceleration at nonrelativistic and relativistic shocks for explosions taking place in a uniform surrounding medium. Second-order stochastic processes in relativistic flows are shown to be capable of accelerating cosmic rays to ultra-high energies. Cosmic rays above the knee of the cosmic ray spectrum can be accelerated by the second-order Fermi mechanism in relativistic flows, such as those occuring in...
Source: http://arxiv.org/abs/astro-ph/0012490v3
43
43
Sep 21, 2013
09/13
by
L. Benfatto; A. Toschi; S. Caprara; C. Castellani
texts
eye 43
favorite 0
comment 0
We analyze the corrections to the superfluid density due to phase fluctuations within both a continuum and a lattice model for $s$- and d-wave superconductors. We expand the phase-only action beyond the Gaussian level and compare our results with the quantum XY model both in the quantum and in the classical regime. We find new dynamic anharmonic vertices, absent in the quantum XY model, which are responsible for the vanishing of the correction to the superfluid density at zero temperature in a...
Source: http://arxiv.org/abs/cond-mat/0104226v2
133
133
Jul 20, 2013
07/13
by
R. S. Gonnelli; A. Calzolari; D. Daghero; G. A. Ummarino; V. A. Stepanov; P. Fino; G. Giunchi; S. Ceresara; G. Ripamonti
texts
eye 133
favorite 0
comment 0
We studied the voltage and temperature dependency of the dynamic conductance of normal metal-MgB2 junctions obtained either with the point-contact technique (with Au and Pt tips) or by making Ag-paint spots on the surface of high-quality single-crystal-like MgB2 samples. The fit of the conductance curves with the generalized BTK model gives evidence of pure s-wave gap symmetry. The temperature dependency of the gap, measured in Ag-paint junctions (dirty limit), follows the standard BCS curve...
Source: http://arxiv.org/abs/cond-mat/0107239v1
Federal Register 2001-07-11: Volume 66 , Issue 133. Digitized from IA1532620-03 . Previous issue: sim_federal-register-find_2001-07-10_66_132 . Next issue: sim_federal-register-find_2001-07-12_66_134 .
Topics: Public Administration, Government Documents, microfilm
Source: IA1532620-03
Customs Bulletin and Decisions : Regulations, Rulings, Decisions, and Notices Concerning Customs and Related Matters of the United States Court of Appeals for the Federal Circuit and the United States Court of International Trade 2001-07-11: Volume 35 , Issue 28. Digitized from IA1519209-01 . Previous issue: sim_customs-bulletin-and-decisions-regulations-rulings_2001-07-05_35_27 . Next issue: sim_customs-bulletin-and-decisions-regulations-rulings_2001-07-18_35_29 .
Topics: Government Documents, Government Documents, microfilm
Source: IA1519209-01
This is a New Zealand classification of Barefoot And Pregnant Part 8 . Title Barefoot And Pregnant Part 8 Publication number 100840 Application number 10100415 Medium Video Slick Current decision Approved Associated documents 14510_18_4_27106.pdf (Reg 32 Notice of Decision) Registration date 2001-07-11 Language English Country United States Related publications 100839 Classification body Office of Film and Literature Classification (1994–) Submission channel Section 12(1) - Labelling Body
Topics: New Zealand, censorship
19
19
Oct 11, 2017
10/17
by
Directorate of Printing, Government of India
texts
eye 19
favorite 0
comment 0
The Gazette of India Extraordinary Gazette Published by the Directorate of Printing, Department of Publication, Ministry of Housing and Urban Affairs, Government of India Published in 2001, Issue Number 39 Ministry: Ministry of Agriculture and Farmers Welfare Subject: In exercise of the powers conferred by Section 4 of the National Oilseeds and Vegetable Oils Development Board Act, 1983 (29 of 1983), the Central Government hereby appoints the following member to be the member of the National...
Topic: Extraordinary Gazette of India
30
30
Aug 9, 2010
08/10
by
NASA
image
eye 30
favorite 0
comment 0
Earth Observation taken by the Expedition Two crew from the International Space Station ISS.
Topic: What -- Earth
81
81
Jul 20, 2013
07/13
by
Hiroyuki Abe; Kenji Fukazawa; Tomohiro Inagaki
texts
eye 81
favorite 0
comment 0
The chiral phase transition of strong-coupling Abelian gauge theories is investigated in the brane world. It is assumed that gauge boson propagates in an extra dimension, i.e. bulk gauge theories. The phase structure is analytically evaluated by using the low-energy effective theories. We also numerically solve the ladder Schwinger-Dyson equation for the full fermion propagator including Kaluza-Klein (KK) excitation modes of the gauge field. It is found that the chiral phase transition is of...
Source: http://arxiv.org/abs/hep-ph/0107125v1
38
38
Oct 25, 2004
10/04
by
http://www.easypalm.com/easyapps
software
eye 38
favorite 0
comment 0
This attendance application allows you to scan in name badges that have barcodes and indicate if someone was late or home sick. When I tried entering my own names, they had to be six characters long. They could not be longer or shorter.
Topics: palm pilot, palm pilot software, palm pilot downloads, palm, palm os, downloads, palm downloads
547
547
Nov 3, 2004
11/04
by
http://www.intlweb.com
software
eye 547
favorite 0
comment 0
Have you ever wanted to use your video-enabled computer to generate traffic to your Web site or keep an eye on your home or office at any time? Oculus allows you to control the setup of your own Web cam. With Oculus, you can create your own WebCam page, create time-lapse movies and watch for movement or noise in a remote location. Oculus features: Quick and easy setup Time and date captions Time-lapse movie creation Image captions with alpha channels, key colors and effect filtering Text...
Topic: macintosh
79
79
Feb 13, 2016
02/16
by
Dsone
software
eye 79
favorite 0
comment 0
Game created using the ZZT engine. Readme file: akim.txt
Topics: ZZT games, Arcade
53
53
Jul 20, 2013
07/13
by
J. Nowicka-Zagrajek; R. Weron
texts
eye 53
favorite 0
comment 0
In this paper we address the issue of modeling electricity loads. After analyzing properties of the deseasonalized loads from the California power market we fit an ARMA(1,6) model to the data. The obtained residuals seem to be independent but with tails heavier than Gaussian. It turns out that the hyperbolic distribution provides an excellent fit.
Source: http://arxiv.org/abs/cond-mat/0107226v1
41
41
Jul 20, 2013
07/13
by
ALEPH Collaboration; DELPHI Collaboration; L3 Collaboration; OPAL Collaboration; the LEP Higgs Working Group
texts
eye 41
favorite 0
comment 0
This note describes preliminary LEP-combined results of searches for Higgs bosons decaying into photons. The analyses use data collected at sqrt(s)~88-209 GeV. Using the combined data for H -> gamma gamma, a lower bound of 108.2 GeV is set at the 95% confidence level for the ``benchmark'' fermiophobic Higgs boson.
Source: http://arxiv.org/abs/hep-ex/0107035v1
52
52
Jul 20, 2013
07/13
by
N. O. Agasian; I. A. Shushpanov
texts
eye 52
favorite 0
comment 0
In the first order of chiral perturbation theory the corrections to $F_{\pi^0}$ and $M_{\pi^0}$ in a magnetic field at finite temperature have been found. It was shown that they are shifted in such a manner that Gell-Mann - Oakes - Renner relation remains valid under these conditions.
Source: http://arxiv.org/abs/hep-ph/0107128v1
6
6.0
Sep 19, 2018
09/18
by
Government of Haryana
texts
eye 6
favorite 0
comment 0
Haryana Gazette Gazette Type: Ordinary Date: 2001-7-11 Gazette Number: 40 Department: Lotteries Notification Number: DOL-HR-Weekly double digit lottery-07-01-Pkl Subject: Draw Result of Haryana Double Digits Weekly Lottery Scheme Source URL
Topic: Haryana Gazette
23
23
Oct 21, 2017
10/17
by
Government of Goa
texts
eye 23
favorite 0
comment 0
The Goa Gazette Published by the Government Printing Press Government of Goa Published By Authority Gazette Number: 0102-14 Gazette Date: 2001-07-11 Gazette Series: SII Gazette Type: OG - Ordinary Gazette - Extraordinary Gazette Gazette No: 1 Official Details Link
Topic: Goa Gazette
88
88
Jul 20, 2013
07/13
by
STAR Collaboration; C. Adler
texts
eye 88
favorite 0
comment 0
Two-pion correlation functions in Au+Au collisions at $\sqrt{s_{NN}} = 130$ GeV have been measured by the STAR (Solenoidal Tracker at RHIC) detector. The source size extracted by fitting the correlations grows with event multiplicity and decreases with transverse momentum. Anomalously large sizes or emission durations, which have been suggested as signals of quark-gluon plasma formation and rehadronization, are not observed. The HBT parameters display a weak energy dependence over a broad range...
Source: http://arxiv.org/abs/nucl-ex/0107008v1
45
45
Sep 18, 2013
09/13
by
A. Katrin Schenk; Phil Arras; Eanna E. Flanagan; Saul A. Teukolsky; Ira Wasserman
texts
eye 45
favorite 0
comment 0
We develop the formalism required to study the nonlinear interaction of modes in rotating Newtonian stars in the weakly nonlinear regime. The formalism simplifies and extends previous treatments. At linear order, we elucidate and extend slightly a formalism due to Schutz, show how to decompose a general motion of a rotating star into a sum over modes, and obtain uncoupled equations of motion for the mode amplitudes under the influence of an external force. Nonlinear effects are added...
Source: http://arxiv.org/abs/gr-qc/0101092v4
41
41
Oct 25, 2004
10/04
by
http://www.adlsoftware.homestead.com
software
eye 41
favorite 0
comment 0
If you have ever moved, you know the stress that the process can cause, not to mention the frustration of misplacing items along the way. Keep track of everything you pack with categories like: Places People Schedule Boxes Chores Expenses Homes
Topics: palm pilot, palm pilot software, palm pilot downloads, palm, palm os, downloads, palm downloads
89
89
Jul 20, 2013
07/13
by
L. Herrera; N. O. Santos
texts
eye 89
favorite 0
comment 0
Using gyroscopes we generalize results, obtained for the gravitomagnetic clock effect in the particular case when the exterior spacetime is produced by a rotating dust cylinder, to the case when the vacuum spacetime is described by the general cylindrically symmetric Lewis spacetime. Results are contrasted with those obtained for the Kerr spacetime.
Source: http://arxiv.org/abs/gr-qc/0107040v1
74
74
Nov 2, 2004
11/04
by
http://www.uni-duesseldorf.de/MathNat/pc1-AK_Weinkauf/ipc/ipc_d.html
software
eye 74
favorite 0
comment 0
The ISOTOPIC PATTERN CALCULATOR is a small linux tool for mass spectrometry. It calculates the isotope distribution for any given chemical formula or peptide sequence. To create the resulting graphs, you can use gnuplot.
Topics: linux, unix, software, GPL
8
8.0
Apr 3, 2019
04/19
by
Darla Sondrol
image
eye 8
favorite 0
comment 0
Arsenopyrite in biotite schist Description: This specimen (8 cm across) contains silvery arsenopyrite (FeAsS) in a fine grained biotite schist. Minor chlorite is also present but hard to pick out. Arsenopyrite is the most common ore of arsenic. Although in a schist here, it is more commonly found in high temperature veins. Location: USA ▹ South Dakota. Near Leed. Homestake Mine. Collection: University of North Dakota Mineralogy Collection #230. Tech details: 807 KB. Hand specimen. Fujifilm...
Topics: geology, mineralogy
12
12
Apr 3, 2019
04/19
by
Darla Sondrol
image
eye 12
favorite 0
comment 0
Pegmatite containing arsenopyrite, quartz, muscovite and plagioclase from Keystone, South Dakota Description: This sample is 9 cm across and comes from a pegmatite near Keystone, South Dakota. Most of it is nondescript tan-white plagioclase. Several crystals of semitransparent quartz can be seen on the left hand edge, a book of muscovite is near the bottom. The gray metallic mineral is arsenopyrite. Pegmatites are exceptionally coarse grained igneous rocks that often contain exotic elements and...
Topics: geology, mineralogy
