Formicaite Mineral Data

[On-Line Catalogue] [On-Line Auctions] [eBay] [Contact Us] [Policies]
We specialize in fine European and Asian Mineral Specimens
Heliodor is based in Prague, Czech Republic

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

Search for Formicaite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

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 - TrapezohedralH-M Symbol (4 2 2) Space Group: P 4₁2₁2

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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:

PE_Formicaite= 3.90 barns/electron
U=PE_Formicaite 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 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Formicaite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Formicaite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Formicaite Mineral Data :

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 Español

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: