cafarsite

Also known as IMA1965-036

Cafarsite (·) is a rare calcium iron arsenite mineral. Manganese and titanium occur with iron in the formula.

Key facts

Mineral.name: Cafarsite
Mineral.category: Arsenites
Mineral.image: Cafarsite-tmix07-154b.jpg
Mineral.caption: Cafarsite on granite
Mineral.formula: ·
Mineral.IMAsymbol: Caf
Mineral.molweight: 2,230.31 g/mol
Mineral.strunz: 4.JC.05
Mineral.system: Isometric
Mineral.class: Diploidal (m) H–M Symbol (2/m )
Mineral.symmetry: Pn
Mineral.unit cell: a = 15.984 Å; Z = 4
Mineral.color: Dark brown
Mineral.habit: Cubic/octahedral crystals
Mineral.fracture: Conchoidal
Mineral.mohs: - 6
Mineral.luster: sub-metallic
Mineral.refractive: n = 2.2

via Wikipedia infobox

Wikidata facts

Image: Cafarsite-mix12b.jpg

Show 6 more facts

Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 4.JC.05
Nickel-Strunz 9th edition (updated 2009): 4.JC.05
Commons category: Cafarsite
IMA Mineral Symbol: Caf
chemical formula: Ca₅.₉Mn₁.₇Fe₃Ti₃(AsO₃)₁₂ * 4-₅H₂O
Strunz 8th edition (series ID, updated): VII/B.12

via Wikidata · CC0

~1 min read

Article

1 sections

Contents

References

Cafarsite (·) is a rare calcium iron arsenite mineral. Manganese and titanium occur with iron in the formula.

It was first described in 1966 for an occurrence in the Binn Valley, Valais, Switzerland. Its name is from the composition, calcium, ferrum (iron), and arsenic. It has also been reported from Piedmont, Italy and the Hemlo gold mine in the Thunder Bay District, Ontario, Canada.