| |
 |
Formicaite Mineral Data
|
|
|
General Formicaite Information
|
 Chemical Formula: |
Ca(HCOO)2 |
| Composition: |
Molecular Weight = 130.11 gm |
| |
Calcium 30.80 % Ca |
| |
Hydrogen 1.55 % H |
| |
Carbon 18.46 % C |
| |
Oxygen 49.19 % O |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Ca2(H)2(C)2(O2) |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
The Solondo borno deposit, Buryatia and the Novofrolovskoye copper deposit, Urals, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its composition. |
| Synonym: |
Calcium Formate |
| |
IMA1998-030 |
| |
Formicaite Crystallography
|
| Axial Ratios: |
a:c = 1:1.39778 |
| Cell Dimensions: |
a = 6.77, c = 9.463, Z = 4; V = 433.72 Den(Calc)= 1.99 |
| Crystal System: |
Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: P 41212 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.4(1), 5.54(0.9), 2.859(0.8),2.196(0.7), 1.947(0.6), 3.19(0.6), 2.046(0.5), |
| |
Physical Properties of Formicaite
|
| Cleavage: |
{100} Perfect |
| Color: |
White, Light blue. |
| Density: |
1.9 |
| Diaphaneity: |
Transparent |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Habit: |
Tabular - Form dimensions are thin in one direction. |
| Hardness: |
1 - Talc |
| Luster: |
Vitreous (Glassy) |
| Streak: |
white |
| |
Optical Properties of Formicaite
|
| Optical Data: |
Uniaxial (+), w=1.553, e=1.573, bire=0.0200. |
| |
Calculated Properties of Formicaite
|
| Electron Density: |
Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Formicaite =1.99 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.0026851063
Boson Index = 0.9973148937 |
| Photoelectric: |
PEFormicaite = 3.90 barns/electron
U=PEFormicaite x rElectron Density= 7.88 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Formicaite is Not Radioactive |
| |
Formicaite Classification
|
| Dana Class: |
50.02.06.01 (50)Salts of Organic Acids |
| |
(50.02)(Mellitates, Citrates, Cyanates, and Acetates) |
| |
(50.02.06)Formicaite Series |
| |
50.02.06.01 Formicaite! Ca(HCOO)2 P 41212 4 2 2 |
| |
50.02.06.02 Dashkovaite! Mg(HCOO)2•2(H2O) P 21/c 2/m |
| Strunz Class: |
10.AA.05 10 - ORGANIC COMPOUNDS |
| |
10.A - Salts of Organic Acids |
| |
10.AA -Formates, Acetates, etc. |
| |
10.AA.05 Formicaite! Ca(HCOO)2 P 41212 4 2 2 |
| |
Other Formicaite Information
|
| References: |
NAME( MinRec, Vol 31, No 4) PHYS. PROP.(MinRec, Vol 31, No 4) OPTIC PROP.(MinRec, Vol 31, No 4) |
| See Also: |
Links to other databases for Formicaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
Search for Formicaite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Formicaite :
Ask about Formicaite 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 Formicaite Specimen Label here :
|
Formicaite
Ca(HCOO)2
Dana No: 50.02.06.01 Strunz No: 10.AA.05
Locality:
Notes:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.