| |
 |
Isoclasite Mineral Data
|
|
|
General Isoclasite Information
|
 Chemical Formula: |
Ca2(PO4)(OH)•2(H2O) (?) |
| Composition: |
Molecular Weight = 228.17 gm |
| |
Calcium 35.13 % Ca 49.16 % CaO |
| |
Phosphorus 13.58 % P 31.11 % P2O5 |
| |
Hydrogen 2.21 % H 19.74 % H2O |
| |
Oxygen 49.09 % O |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Ca2(PO4)(OH)•2(H2O) |
| Environment: |
Found with chalcedony and dolomite. An inadequately described species. |
| IMA Status: |
Valid Species (Pre-IMA) 1870 |
| Locality: |
Jachymov, Zapadocesky Kraj, Bohemia, Czech Republic. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek for "equal" and "fracture", in allusion to the cleavage. |
| Name Pronunciation: |
Isoclasite + Pronunciation  |
| |
Isoclasite Crystallography
|
| Crystal System: |
Monoclinic |
| |
Physical Properties of Isoclasite
|
| Cleavage: |
{010} Distinct |
| Color: |
Colorless, White. |
| Density: |
2.92 |
| Diaphaneity: |
Transparent to Translucent |
| Habit: |
Fibrous - Crystals made up of fibers. |
| Hardness: |
1.5 - Between Talc and Gypsum |
| Luster: |
Vitreous - Pearly |
| |
Optical Properties of Isoclasite
|
| Gladstone-Dale: |
CI meas= 0.14 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1955,KC= 0.2273
Ncalc = 1.66 |
| Optical Data: |
Biaxial (+), a=1.565, b=1.568, g=1.58, bire=0.0150, 2V(Calc)=54, 2V(Meas)=medium. |
| |
Calculated Properties of Isoclasite
|
| Electron Density: |
Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Isoclasite =2.92 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.0007131872
Boson Index = 0.9992868128 |
| Photoelectric: |
PEIsoclasite = 4.93 barns/electron
U=PEIsoclasite x rElectron Density= 14.64 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Isoclasite is Not Radioactive |
| |
Isoclasite Classification
|
| Dana Class: |
42.06.02.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
| |
(42.06)where (AB)2 (XO4) Zq � x(H2O) |
| |
(42.06.02)Dana Group |
| |
42.06.02.01 Isoclasite Ca2(PO4)(OH)•2(H2O)(?) Mono |
| Strunz Class: |
08.DN.10 08 - PHOSPHATES, ARSENATES, VANADATES |
| |
08.D - Phosphates, etc |
| |
08.DN -With only large cations |
| |
08.DN.10 Isoclasite Ca2(PO4)(OH)•2(H2O)(?) Mono |
| |
Other Isoclasite Information
|
| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
| See Also: |
Links to other databases for Isoclasite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
Search for Isoclasite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Isoclasite :
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.
Ask about Isoclasite 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 Isoclasite Specimen Label here :
|
Isoclasite
Ca2(PO4)(OH)•2(H2O) (?)
Dana No: 42.06.02.01 Strunz No: 08.DN.10
Locality:
Notes:
|
|
| |
| |
|
| |