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Formicaite

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About FormicaiteHide

Formula:
Ca(HCOO)2
Colour:
White
Lustre:
Vitreous
Hardness:
1
Crystal System:
Tetragonal
Name:
For its chemical composition: the FORMate of CAlcium.
Naturally occurring calcium formate.


Classification of FormicaiteHide

Approved
Approval Year:
1998
10.AA.05

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
A : Formates, Acetates, etc.
Dana 7th ed.:
50.2.3.1

Physical Properties of FormicaiteHide

Vitreous
Colour:
White
Streak:
White
Hardness:

Optical Data of FormicaiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.553 nε = 1.573
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of FormicaiteHide

Formula:
Ca(HCOO)2
IMA Formula:
Ca(CHOO)2

Crystallography of FormicaiteHide

Crystal System:
Tetragonal

Type Occurrence of FormicaiteHide

Synonyms of FormicaiteHide

Other Language Names for FormicaiteHide

German:Formicait
Spanish:Formicaita

Related Minerals - Nickel-Strunz GroupingHide

10.AA.10DashkovaiteMg(HCOO)2 · 2H2OMon. 2/m : P21/b
10.AA.20AcetamideCH3CONH2Trig. 3m : R3c
10.AA.25CalclaciteCa(CH3COO)Cl · 5H2OMon. 2/m : P21/b
10.AA.30PaceiteCaCu(CH3COO)4 · 6H2OTet.
10.AA.35HoganiteCu(CH3COO)2 · H2OMon. 2/m : B2/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for FormicaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 128(2): 43-47.

Internet Links for FormicaiteHide

Localities for FormicaiteHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia
 
  • Sakha Republic (Yakutia)
    • Polar Yakutia
      • Dogdo River Basin
        • Tas-Khayakhtakh Range
http://maurice.strahlen.org/yakutia/yakutia.htm
  • Transbaikalia (Zabaykalye)
    • Buriatia Republic (Buryatia)
      • Vitim Plateau
[AmMin 85:1322]
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast
        • Tur'insk-Auerbakovsk ore field
          • Turya river
            • Tur'insk
[AmMin 85:1322]
USA
 
  • Oregon
    • Lake Co.
Gunnar Färber - Mineralienliste 1-2018
Mineral and/or Locality  
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