tyrolite
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Tyrolite is a hydrous calcium copper arsenate carbonate mineral with the formula CaCu5(AsO4)2CO3(OH)4⋅6H2O. Tyrolite forms glassy, blue to green orthorhombic radial crystals and botryoidal masses. It has a Mohs hardness of 1.5–2.0 and a specific gravity of 3.1–3.2. It is translucent with refractive indices of nα = 1.694, nβ = 1.726, and nγ = 1.730.
Key facts
- Mineral.name
- Tyrolite
- Mineral.image
- Tyrolite-256893.jpg
- Mineral.imagesize
- 260px
- Mineral.category
- Arsenate and carbonate minerals
- Mineral.IMAsymbol
- Tyl
- Mineral.strunz
- 8.DM.10
- Mineral.system
- Orthorhombic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P2/c (no. 13) or C2/c (no. 15)
- Mineral.color
- Blue to green
- Mineral.habit
- Radial or botryoidal
- Mineral.mohs
- 1.5–2.0
- Mineral.luster
- Vitreous
- Mineral.diaphaneity
- Translucent
- Mineral.gravity
- 3.1–3.2
- Mineral.refractive
- nα = 1.694nβ = 1.726nγ = 1.730
via Wikipedia infobox
Wikidata facts
- Image
- Mineraly.sk - tirolit.jpg
Show 6 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 8.DM.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.DM.10
- Commons category
- Tyrolite
- IMA Mineral Symbol
- Tyl
- chemical formula
- Ca₂Cu₉(AsO₄)₄(CO₃)(OH)₈·11H₂O
- Strunz 8th edition (series ID, updated)
- VII/D.09
Sources (2)
via Wikidata · CC0
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Article
1 sectionsContents
- References
Tyrolite is a hydrous calcium copper arsenate carbonate mineral with the formula CaCu5(AsO4)2CO3(OH)4⋅6H2O. Tyrolite forms glassy, blue to green orthorhombic radial crystals and botryoidal masses. It has a Mohs hardness of 1.5–2.0 and a specific gravity of 3.1–3.2. It is translucent with refractive indices of nα = 1.694, nβ = 1.726, and nγ = 1.730.
It is a secondary mineral formed by the weathering of associated copper and arsenic minerals. It was first described in 1845 for an occurrence in Schwaz, Tyrol, Austria.