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Atelestite Mineral Data |
General Atelestite Information |
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Bi8(AsO4)3(OH)5O5 | ||
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Molecular Weight = 2,253.63 gm | ||
Bismuth 74.18 % Bi 82.70 % Bi2O3 | |||
Arsenic 9.97 % As 15.30 % As2O5 | |||
Hydrogen 0.22 % H 2.00 % H2O | |||
Oxygen 15.62 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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Bi8(AsO4)3(OH)5O5 | ||
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As a rare secondary mineral in the oxidized zone of bismuth- and arsenic-bearing mineral deposits. | ||
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Valid Species (Pre-IMA) 1832 | ||
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In Germany, in Saxony, at the Neuhilfe, the Weisser Hirsch, and the Junge Kalbe mines, Neustadtel-Schneeberg; from Gadernheim, near Bensheim, Hesse; and the Neubulach and the Schmiedes Link to MinDat.org Location Data. | ||
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Derivation not explicitly stated. Probably from the Greek for "incomplete," as the composition was undetermined when the mineral was first described. | ||
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Atelestite + Pronunciation ![]() |
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ICSD 70112 | ||
PDF 15-735 | |||
Atelestite Image | |||
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Atelestite Crystallography |
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a:b:c =1.4663:1:0.9407 | ||
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a = 10.88, b = 7.42, c = 6.98, Z = 1; beta = 107.213° V = 538.25 Den(Calc)= 6.95 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a | ||
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By Intensity(I/Io): 3.239(1), 3.116(0.4), 2.725(0.3), | ||
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Physical Properties of Atelestite |
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{???} Indistinct | ||
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Green, Light yellow, Black. | ||
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6.82 | ||
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Transparent to Translucent | ||
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4.5-5 - Near Apatite | ||
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Adamantine - Resinous | ||
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white | ||
Optical Properties of Atelestite |
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CI meas= -0.073 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.053 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1664,KPDmeas= 0.1696,KC= 0.1581 Ncalc = 2.08 - 2.1 |
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Biaxial (+), a=2.14, b=2.15, g=2.18, bire=0.0400, 2V(Calc)=62, 2V(Meas)=44. | ||
Calculated Properties of Atelestite |
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Bulk Density (Electron Density)=5.82 gm/cc note: Specific Gravity of Atelestite =6.95 gm/cc. |
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Fermion Index = 0.0000760467 Boson Index = 0.9999239533 |
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PEAtelestite =1,432.77 barns/electron U=PEAtelestite x rElectron Density=8,342.18 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Atelestite is Not Radioactive |
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Atelestite Classification |
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41.11.05.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
(41.11)with miscellaneous formulae | |||
(41.11.05)Dana Group | |||
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08.BO.15 08 - PHOSPHATES, ARSENATES, VANADATES | ||
08.B - Phosphates, etc. with Additional Anions, without H2O | |||
08.BO -With only large cations, (OH, etc.):RO4 � 1:1 | |||
Other Atelestite Information |
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NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Atelestite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Atelestite using: Visit our Advertisers for Atelestite : Ask about Atelestite here : Print or Cut-and-Paste your Atelestite Specimen Label here :
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