Atelestite Mineral Data

Atelestite Mineral Data +

[Mineral Specimens] [Our best] [Rare specimens] [Latest updates] [Home Page]
Fine Minerals, Moldavites, Jewellery, Meteorites and Fossils
Rockshop.cz is based in Prague, Czech republic

General Atelestite Information

Chemical Formula:

Bi8(AsO4)3(OH)5O5

Composition:

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

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Bi₈(AsO₄)₃(OH)₅O₅

Environment:

As a rare secondary mineral in the oxidized zone of bismuth- and arsenic-bearing mineral deposits.

IMA Status:

Valid Species (Pre-IMA) 1832

Locality:

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.

Name Origin:

Derivation not explicitly stated. Probably from the Greek for "incomplete," as the composition was undetermined when the mineral was first described.

Synonym:

ICSD 70112

PDF 15-735

Search for Atelestite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Atelestite Crystallography

Axial Ratios:

a:b:c =1.4663:1:0.9407

Cell Dimensions:

a = 10.88, b = 7.42, c = 6.98, Z = 1; beta = 107.213° V = 538.25 Den(Calc)= 6.95

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.239(1), 3.116(0.4), 2.725(0.3),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: [ 1 1 1] [ 0 1 0] [ 1 1 0] [ 1 0 1] [ 1 0 0]

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Physical Properties of Atelestite

Cleavage:

[???] Indistinct

Color:

Green, Light yellow, Black.

Density:

6.82

Diaphaniety:

Transparent to Translucent

Hardness:

4.5-5 - Near Apatite

Luster:

Adamantine - Resinous

Streak:

white

Optical Properties of Atelestite

Gladstone-Dale:

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

Optical Data:

Biaxial (+), a=2.14, b=2.15, g=2.18, bire=0.0400, 2V(Calc)=62, 2V(Meas)=44.

Calculated Properties of Atelestite

Electron Density:

r_electron=5.82 gm/cc
note: r_Atelestite=6.95 gm/cc.

Fermion Index

Fermion Index = 0.00007
Boson Index = 0.99993

Photoelectric:

PE_Atelestite=1,432.77 barns/electron
U=PE_Atelestite x r_electron=8,342.18 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Atelestite is Not Radioactive

Atelestite Classification

Dana Class:

41.11.5.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.11)with miscellaneous formulae

(41.11.5)Dana Group

41.11.5.1 Atelestite Bi8(AsO4)3(OH)5O5 P 2₁/a 2/m

Strunz Class:

VII/B.30-02 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.30 - Petitjeanite - Kuznetsovite series

VII/B.30-01 Smrkovecite! Bi2O(OH)(PO4) P 2₁/c 2/m

VII/B.30-02 Atelestite Bi8(AsO4)3(OH)5O5 P 2₁/a 2/m

VII/B.30-03 Hechtsbergite! Bi2O(OH)(VO4) P 2₁/c 2/m

VII/B.30-05 Petitjeanite Bi3(PO4)2O(OH) P1 1

VII/B.30-10 Preisingerite Bi3(AsO4)2O(OH) P1 1

VII/B.30-20 Schumacherite Bi3[(V,As,P)O4]2O(OH) P1 1

VII/B.30-30 Kuznetsovite! Hg3Cl(AsO4) P 2₁3 2 3

Other Atelestite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Atelestite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

Search for Atelestite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Atelestite :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Atelestite Mineral Data :

Ask about Atelestite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Atelestite Specimen Label here :

Atelestite

Bi8(AsO4)3(OH)5O5
Dana No: 41.11.5.1 Strunz No: VII/B.30-02
Locality:

Notes: