Atelestite (original) (raw)
A valid IMA mineral species - grandfathered
About AtelestiteHide
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Colour:
Sulphur-yellow to yellowish-green, wax-yellow, yellow-brown
Lustre:
Adamantine, Resinous
Crystal System:
Monoclinic
Name:
From the Greek άτελής for "incomplete," presumably because its composition was unknown when first described.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:407:5
b6b17bb7-2a96-4387-bd4b-8a05dfb036ca
IMA Classification of AtelestiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Bi2O(AsO4)(OH)
Type description reference:
Classification of AtelestiteHide
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8.BO.15
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
O : With only large cations, (OH, etc.):RO4 about 1:1
41.11.5.1
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : Miscellaneous
20.6.4
20 : Arsenates (also arsenates with phosphate, but without other anions)
6 : Arsenates of Bi
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Ale | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of AtelestiteHide
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Transparency:
Transparent, Translucent
Colour:
Sulphur-yellow to yellowish-green, wax-yellow, yellow-brown
Comment:
Light yellow to colourless in transmitted light.
Cleavage:
Poor/Indistinct
On {001}, indistinct.
Density:
7.14 g/cm3 (Measured) 6.95 g/cm3 (Calculated)
Optical Data of AtelestiteHide
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RI values:
_n_α = 2.140 _n_β = 2.150 _n_γ = 2.180
2V:
Measured: 42° to 46°, Calculated: 62°
δ = 0.040
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of AtelestiteHide
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Mindat Formula:
Bi2(AsO4)O(OH)
Crystallography of AtelestiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.88 Å, b = 7.42 Å, c = 6.98 Å
β = 107.2°
Ratio:
a:b:c = 1.466 : 1 : 0.941
Unit Cell V:
538.29 ų (Calculated from Unit Cell)
Morphology:
Crystals generally minute, tabular {100}, with a, g, d and q commonly prominent. q{313} somewhat rounded. Other faces smooth and brilliant. Also occurs as spherical or mammillary crystalline aggregates with smooth surfaces.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012025 | Atelestite | Mereiter K, Preisinger A (1986) Kristallstrukturdaten der wismutminerale atelestit, mixit und pucherit Anzeiger der Osterreichische Akademie der Wissenschaften 123 79-81 | 1986 | Schneeberg, Saxony, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.239 Å | (100b) |
| 6.62 Å | (20) |
| 4.233 Å | (20) |
| 3.116 Å | (40) |
| 2.725 Å | (30) |
| 2.526 Å | (20) |
| 2.201 Å | (20) |
Geological EnvironmentHide
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Geological Setting:
As a rare secondary mineral in the oxidized zone of bismuth- and arsenic-bearing mineral deposits.
Type Occurrence of AtelestiteHide
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Place of Conservation of Type Material:
Technische Universität, Bergakademie Freiberg, Freiberg, Germany, number 21749.
Associated Minerals at Type Locality:
Reference:
Breithaupt, J.F.A. (1832) Atelestit. in Vollständige Charakteristik des Mineral-Systems, 2nd Ed., Arnoldische Buchhandlung (Dresden): 307-307.
Synonyms of AtelestiteHide
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Other Language Names for AtelestiteHide
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Relationship of Atelestite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 8.BO. | Ariegilatite | BaCa12(SiO4)4(PO4)2F2O | Trig. 3_m_ _(_32/m ) : R_3_m |
|---|---|---|---|
| 8.BO. | Aravaite | Ba2Ca18(SiO4)6(PO4)3(CO3)F3O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 8.BO. | Theuerdankite | Ag3AsO4 | Iso. 43_m_ : P_43_n |
| 8.BO.05 | Nacaphite | Na2Ca(PO4)F | Mon. 2/m : _P_21/b |
| 8.BO.10 | Preisingerite | Bi3(AsO4)2O(OH) | Tric. 1 : _P_1 |
| 8.BO.10 | Petitjeanite | Bi3(PO4)2O(OH) | Tric. 1 : _P_1 |
| 8.BO.10 | Schumacherite | Bi3(VO4)2O(OH) | Tric. 1 : _P_1 |
| 8.BO.15 | Hechtsbergite | Bi2(VO4)O(OH) | Mon. 2/m : _P_21/b |
| 8.BO.15 | Smrkovecite | Bi2(PO4)O(OH) | Mon. 2/m : _P_21/b |
| 8.BO.20 | Kombatite | Pb14(VO4)2O9Cl4 | Mon. 2/m : _B_2/b |
| 8.BO.20 | Sahlinite | Pb14(AsO4)2O9Cl4 | Mon. 2/m : _B_2/b |
| 8.BO.25 | Heneuite | CaMg5(CO3)(PO4)3(OH) | Tric. 1 : _P_1 |
| 8.BO.30 | Nefedovite | Na5Ca4(PO4)4F | Tric. |
| 8.BO.35 | Kuznetsovite | [Hg2]2+Hg2+[AsO4]Cl | Iso. 23 : _P_213 |
| 8.BO.40 | Artsmithite | [Hg2]2+2Al(PO4)1.74(OH)1.78 | Mon. 2/m : _B_2/b |
| 8.BO.45 | Schlegelite | Bi7(AsO4)3(MoO4)2O4 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.BO.50 | Hereroite | [Pb32(O,◻)21](AsO4)2[(Si,As,V,Mo]O4)2Cl10 | Mon. 2/m : _B_2/b |
| 8.BO.50 | Erikjonssonite | (Pb32O21)[(V,Si,Mo,As)O4]4Cl9 | Mon. 2/m : _B_2/b |
| 8.BO.55 | Rudabányaite | (Ag2Hg2)(AsO4)Cl | Iso. 43_m_ : F_43_c |
| 8.BO.60 | Segerstromite | Ca3(As5+O4)2[As3+(OH)3]2 | Iso. 23 : _I_213 |
| 8.BO.65 | Wiklundite | Pb2(Mn2+,Zn)3(Fe3+,Mn2+)2(Mn2+,Mg)19(As3+O3)2[(Si,As5+)O4]6(OH)18Cl6 | Trig. 3_m_ _(_32/m ) : R_3_c |
Other InformationHide
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Notes:
Readily soluble in HCl; soluble with difficulty in HNO3.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for AtelestiteHide
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References for AtelestiteHide
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Reference List:
Frost, Ray L., Čejka, Jiří, Sejkora, Jiří, Plášil, Jakub, Reddy, B.J., Keeffe, Eloise C. (2011) Raman spectroscopic study of a hydroxy-arsenate mineral containing bismuth–atelestite Bi2O(OH)(AsO4) Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 78 (1) 494-496 doi:10.1016/j.saa.2010.11.016
Localities for AtelestiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.