Mineralogy Database

Isoclasite Mineral Data

Search Webmineral :

General Isoclasite Information

Help on Chemical  Formula: Chemical Formula: Ca2(PO4)(OH)•2(H2O) (?)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Ca2(PO4)(OH)•2(H2O)
Help on Environment: Environment: Found with chalcedony and dolomite. An inadequately described species.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: Jachymov, Zapadocesky Kraj, Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "equal" and "fracture", in allusion to the cleavage.
Help on Name Pronunciation: Name Pronunciation: Isoclasite + Pronunciation Say ISOCLASITE

Isoclasite Crystallography

Help on Crystal System: Crystal System: Monoclinic

Physical Properties of Isoclasite

Help on Cleavage: Cleavage: {010} Distinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.92
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 1.5 - Between Talc and Gypsum
Help on Luster: Luster: Vitreous - Pearly

Optical Properties of Isoclasite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.14 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1955,KC= 0.2273
Ncalc = 1.66
Help on Optical Data: 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

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Isoclasite =2.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0007131872
Boson Index = 0.9992868128
Help on Photoelectric: Photoelectric: PEIsoclasite = 4.93 barns/electron
U=PEIsoclasite x rElectron Density= 14.64 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Isoclasite is Not Radioactive

Isoclasite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.06)where (AB)2 (XO4) Zq � x(H2O)
  (42.06.02)Dana Group Isoclasite Ca2(PO4)(OH)•2(H2O)(?) Mono
Help on  Strunz Class: 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

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: 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:

Web webmineral.com
[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 Espa�ol

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


Ca2(PO4)(OH)•2(H2O) (?)
Dana No: Strunz No: 08.DN.10