legrandite
Sign in to saveLegrandite is a rare zinc arsenate mineral, Zn2(AsO4)(OH)·(H2O).
Key facts
- Mineral.name
- Legrandite
- Mineral.category
- Arsenate minerals
- Mineral.image
- Legrandite, limonite 1100.1.2839.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- Zn2(AsO4)(OH)·(H2O)
- Mineral.IMAsymbol
- Leg
- Mineral.strunz
- 8.DC.10
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/c
- Mineral.unit cell
- a = 12.805(2), b = 7.933(1) c = 10.215(2) [Å]; β = 104.23°; Z = 8
- Mineral.color
- Bright yellow, wax-yellow, colorless
- Mineral.habit
- Crystalline, prismatic, typically in sprays or sheaflike aggregates
- Mineral.cleavage
- Imperfect, poor one {100}
- Mineral.fracture
- Conchoidal
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 4.5–5
- Mineral.luster
- Vitreous
via Wikipedia infobox
Wikidata facts
- Image
- LegranditeMexique.jpg
Show 6 more facts
- Commons category
- Legrandite
- Nickel-Strunz 9th edition (updated 2009)
- 8.DC.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.DC.10
- IMA Mineral Symbol
- Leg
- chemical formula
- Zn₂AsO₄(OH)·H₂O
- Strunz 8th edition (series ID, updated)
- VII/D.02
Sources (1)
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1 sectionsContents
- References
{{Infobox mineral | name = Legrandite | category = Arsenate minerals | boxwidth = | boxbgcolor = | image = Legrandite, limonite 1100.1.2839.jpg | imagesize = 260px | caption = | formula = Zn2(AsO4)(OH)·(H2O) | IMAsymbol = Leg | strunz = 8.DC.10 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/c | unit cell = a = 12.805(2), b = 7.933(1) c = 10.215(2) [Å]; β = 104.23°; Z = 8 | color = Bright yellow, wax-yellow, colorless | habit = Crystalline, prismatic, typically in sprays or sheaflike aggregates | twinning = | cleavage = Imperfect, poor one {100} | fracture = Conchoidal | tenacity = Brittle | mohs = 4.5–5 | luster = Vitreous | refractive = nα = 1.675 – 1.702 nβ = 1.690 – 1.709 nγ = 1.735 – 1.740 | opticalprop = Biaxial (+) | birefringence = δ = 0.060 | pleochroism = X = Y = Colorless to yellow Z = Yellow | 2V = Measured: 50° | streak = White | gravity = 3.98–4.01 | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to translucent | other = | references = }}
Legrandite is a rare zinc arsenate mineral, Zn2(AsO4)(OH)·(H2O).