![]() |
Prosopite Mineral Data |
General Prosopite Information |
|||
![]() |
CaAL2(F,OH)8 | ||
![]() |
Molecular Weight = 242.05 gm | ||
Calcium 16.56 % Ca 23.17 % CaO | |||
Aluminum 22.29 % Al 42.12 % Al2O3 | |||
Hydrogen 0.83 % H 7.44 % H2O | |||
Oxygen 13.22 % O | |||
Fluorine 47.09 % F 47.09 % F | |||
- % F -19.83 % -O=F2 | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
![]() |
CaAl2F6(OH)2 | ||
![]() |
Valid Species (Pre-IMA) 1853 | ||
![]() |
St. Peter's Dome near Pike's Peak, Colorado, USA. Link to MinDat.org Location Data. | ||
![]() |
From the Greek prosopon - "mask." | ||
![]() |
Prosopite + Pronunciation ![]() |
||
![]() |
ICSD 10267 | ||
PDF 5-307 | |||
Prosopite Image | |||
![]() |
|
||
Prosopite Crystallography |
|||
![]() |
a:b:c =0.6588:1:0.6021 | ||
![]() |
a = 7.32, b = 11.11, c = 6.69, Z = 4; beta = 95° V = 542.00 Den(Calc)= 2.97 | ||
![]() |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: A2/a | ||
![]() |
By Intensity(I/Io): 4.35(1), 1.837(0.6), 2.13(0.6), | ||
![]()
Mouse |
|
||
Physical Properties of Prosopite |
|||
![]() |
{111} Perfect, {111} Perfect, {111} Perfect | ||
![]() |
White, Greenish white, Reddish white. | ||
![]() |
2.88 - 2.89, Average = 2.88 | ||
![]() |
Transparent | ||
![]() |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
![]() |
Crystalline - Fine - Occurs as well-formed fine sized crystals. | ||
![]() |
Massive - Granular - Common texture observed in granite and other igneous rock. | ||
![]() |
4-5 - Fluorite-Apatite | ||
![]() |
Fluorescent, Short UV=sky blue blue white, Long UV=sky blue blue white. | ||
![]() |
Vitreous - Dull | ||
![]() |
Nonmagnetic | ||
![]() |
white | ||
Optical Properties of Prosopite |
|||
![]() |
Biaxial (+), a=1.501, b=1.503, g=1.51, bire=0.0090, 2V(Calc)=58, 2V(Meas)=62.75. Dispersion none. | ||
![]() |
colorless. | ||
![]() |
colorless. | ||
![]() |
colorless. | ||
Calculated Properties of Prosopite |
|||
![]() |
Bulk Density (Electron Density)=2.90 gm/cc note: Specific Gravity of Prosopite =2.97 gm/cc. |
||
![]() |
Fermion Index = 0.0002882388 Boson Index = 0.9997117612 |
||
![]() |
PEProsopite = 2.98 barns/electron U=PEProsopite x rElectron Density= 8.63 barns/cc. |
||
![]() |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Prosopite is Not Radioactive |
||
Prosopite Classification |
|||
![]() |
11.06.09.01 (11)Halide Complexes; Alumino-fluorides | ||
(11.06)with miscellaneous formulae | |||
(11.06.09)Dana Group | |||
![]() |
03.CD.10 03 - HALIDES | ||
03.C - Complex Halides | |||
03.CD -Ino-aluminofluorides | |||
Other Prosopite Information |
|||
![]() |
NAME( Duda&Rejl90) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Ford32) | ||
![]() |
Links to other databases for Prosopite : 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 Prosopite using: Visit our Advertisers for Prosopite : Ask about Prosopite here : Print or Cut-and-Paste your Prosopite Specimen Label here :
|
||
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.