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Formicaite Mineral Data

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General Formicaite Information

Help on Chemical  Formula: Chemical Formula: Ca(HCOO)2
Help on Composition: Composition: Molecular Weight = 130.11 gm
   Calcium   30.80 %  Ca
   Hydrogen   1.55 %  H
   Carbon    18.46 %  C
   Oxygen    49.19 %  O
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ca2(H)2(C)2(O2)
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: The Solondo borno deposit, Buryatia and the Novofrolovskoye copper deposit, Urals, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its composition.
Help on Synonym: Synonym: Calcium Formate

Formicaite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.39778
Help on Cell Dimensions: Cell Dimensions: a = 6.77, c = 9.463, Z = 4; V = 433.72 Den(Calc)= 1.99
Help on Crystal System: Crystal System: Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: P 41212
Help on X Ray Diffraction: 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

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: White, Light blue.
Help on Density: Density: 1.9
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Formicaite

Help on Optical Data: Optical Data: Uniaxial (+), w=1.553, e=1.573, bire=0.0200.

Calculated Properties of Formicaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Formicaite =1.99 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0026851063
Boson Index = 0.9973148937
Help on Photoelectric: Photoelectric: PEFormicaite = 3.90 barns/electron
U=PEFormicaite x rElectron Density= 7.88 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Formicaite is Not Radioactive

Formicaite Classification

Help on  Dana Class: Dana Class: (50)Salts of Organic Acids
  (50.02)(Mellitates, Citrates, Cyanates, and Acetates)
  (50.02.06)Formicaite Series Formicaite! Ca(HCOO)2 P 41212 4 2 2 Dashkovaite! Mg(HCOO)2•2(H2O) P 21/c 2/m
Help on  Strunz Class: 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

Help on References: References: NAME( MinRec, Vol 31, No 4) PHYS. PROP.(MinRec, Vol 31, No 4) OPTIC PROP.(MinRec, Vol 31, No 4)
Help on See Also: 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

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Dana No: Strunz No: 10.AA.05