| Formicaite Mineral Data |
- 50.2.6.1 Formicaite ! Ca(HCOO)2 P 41212 4 2 2
- 50.2.6.2 Dashkovaite! Mg(HCOO)2·2(H2O) P 21/c 2/m
- IX/A.02-03 Dashkovaite! Mg(HCOO)2·2(H2O) P 21/c 2/m
- IX/A.02-05 Formicaite Ca(HCOO)2 P 41212 4 2 2
- IX/A.02-10 Mellite Al2[C6(COO)6]·16(H2O) P 4122,P 4322 4 2 2
- IX/A.02-16 Hoganite! Cu(CH3COO)2·H2O C 2/c 2/m
- IX/A.02-18 Paceite! CaCu(CH3COO)4·6(H2O) I 4/m 4/m
- IX/A.02-20 Calclacite Ca[Cl2/CH3COO]·10(H2O) P 21/a 2/m
- IX/A.02-30 Earlandite Ca3(C6H5O7)·4(H2O) Unk Mono
- IX/A.02-40 Kafehydrocyanite* K4Fe(CN)6·3(H2O) I 41/a 4/m
- IX/A.02-50 Julienite* Na2Co(SCN)4·8(H2O) P 41/n 4/m
- IX/A.02-60 Abelsonite NiC31H32N4 P1 or P1 Tri
General Formicaite Information |
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 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 | |||
Search for Formicaite Images | |||
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Images:
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Formicaite Crystallography |
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| 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 - TrapezohedralH-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 |
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| Cleavage: |
[100] Perfect | ||
| Color: |
White, Light blue. | ||
| Density: |
1.9 | ||
| Diaphaniety: |
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 |
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| Optical Data: |
Uniaxial (+), w=1.553, e=1.573, bire=0.0200. | ||
Calculated Properties of Formicaite |
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| Electron Density: |
relectron=2.02 gm/cc |
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| Fermion Index |
Fermion Index = 0.00268 Boson Index = 0.99732 |
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| Photoelectric: |
PEFormicaite = 3.90 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Formicaite is Not Radioactive |
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Formicaite Classification |
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| Dana Class: |
50.2.6.1 (50)Salts of Organic Acids | ||
| (50.2)(Mellitates, Citrates, Cyanates, and Acetates) | |||
| (50.2.6)Dana Group | |||
| Strunz Class: |
IX/A.02-05 IX - Organic compunds | ||
| IX/A - Salts from organic acids. Other organic salts, a.o. mellates and citrates. | |||
| IX/A.02 - Mellite - Abelsonite (?) series | |||
Other Formicaite Information |
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| 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 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Formicaite using: Visit our Advertisers for Formicaite : Translate Formicaite Mineral Data : Ask about Formicaite here : Print or Cut-and-Paste your Formicaite Specimen Label here :
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