کروکوئیت
Sign in to saveAlso known as Lehmannite (of Brooke)
Crocoite is a mineral consisting of lead chromate, PbCrO4, and crystallizing in the monoclinic crystal system. It is identical in composition with the artificial product chrome yellow used as a paint pigment.
Key facts
- Mineral.class
- Prismatic (2/m)(same H-M symbol)
- Mineral.name
- Crocoite
- Mineral.category
- Chromate minerals
- Mineral.image
- Crocoite from the Dundas extended mine, Dundas, Tasmania, Australia.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Crocoite from Dundas, Tasmania
- Mineral.formula
- Lead Chromate PbCrO4
- Mineral.IMAsymbol
- Crc
- Mineral.strunz
- 7.FA.20
- Mineral.system
- Monoclinic
- Mineral.symmetry
- P21/n
- Mineral.unit cell
- a = 7.12 Å, b = 7.421 Å,c = 6.8 Å; β = 102.41°; Z = 4
- Mineral.color
- Orange, red, yellow; orange-red in transmitted light.
- Mineral.habit
- Coarsely crystalline to acicular
- Mineral.cleavage
- Distinct on {110} indistinct on {001} and {100}
- Mineral.fracture
- Conchoidal to uneven
- Mineral.tenacity
- Sectile
- Mineral.mohs
- 2.5–3
via Wikipedia infobox
Wikidata facts
- Has part
- lead(II) chromate
- Named after
- saffron
- Image
- Crocoïte Dundas2p.jpg
Show 8 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.FA.20
- Commons category
- Crocoite
- chemical formula
- PbCrO₄
- Nickel-Strunz 9th edition (updated 2009)
- 7.FA.20
- type locality (geology)
- Beryozovskoye deposit
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- Crc
- Strunz 8th edition (series ID, updated)
- VI/E.01
Sources (1)
via Wikidata · CC0