mixite
Sign in to saveMixite is a rare copper bismuth arsenate mineral with formula: BiCu6(AsO4)3(OH)6·3(H2O). It crystallizes in the hexagonal crystal system typically occurring as radiating acicular prisms and massive encrustations. The color varies from white to various shades of green and blue. It has a Mohs hardness of 3.5 to 4 and a specific gravity of 3.8. It has an uneven fracture and a brilliant to adamantine luster.
Key facts
- Mineral.symmetry
- P63/m
- Mineral.name
- Mixite
- Mineral.image
- Mixite-215142.jpg
- Mineral.caption
- Turquoise-blue mixite, Laurium, Greece. Size: 6.8 x 5.0 x 3.6 cm.
- Mineral.category
- Arsenate mineral
- Mineral.formula
- BiCu6(AsO4)3(OH)6·3(H2O)
- Mineral.IMAsymbol
- Mix
- Mineral.strunz
- 8.DL.15
- Mineral.system
- Hexagonal
- Mineral.class
- Dipyramidal (6/m) (same H-M symbol)
- Mineral.unit cell
- a = 13.646(2) Å, c = 5.920(1) Å; Z = 2
- Mineral.color
- Blue to emerald-green, pale green, white
- Mineral.habit
- Acicular crystals often in radial clusters
- Mineral.fracture
- Uneven
- Mineral.mohs
- 3–4
- Mineral.luster
- Vitreous
- Mineral.streak
- Pale green
- Mineral.diaphaneity
- Transparent to translucent
via Wikipedia infobox
Wikidata facts
- Image
- Mixite-111360.jpg
Show 6 more facts
- chemical formula
- BiCu₆(AsO₄)₃(OH)₆ * 3H₂O
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.DL.15
- Commons category
- Mixite
- Nickel-Strunz 9th edition (updated 2009)
- 8.DL.15
- IMA Mineral Symbol
- Mix
- Strunz 8th edition (series ID, updated)
- VII/D.17
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Mixite is a rare copper bismuth arsenate mineral with formula: BiCu6(AsO4)3(OH)6·3(H2O). It crystallizes in the hexagonal crystal system typically occurring as radiating acicular prisms and massive encrustations. The color varies from white to various shades of green and blue. It has a Mohs hardness of 3.5 to 4 and a specific gravity of 3.8. It has an uneven fracture and a brilliant to adamantine luster.
It occurs as a secondary mineral in the oxidized zones of copper deposits. Associated minerals include: bismutite, smaltite, native bismuth, atelestite, erythrite, malachite and barite.