سودومالاکیت
Sign in to saveAlso known as ehlite
Pseudomalachite is a phosphate of copper with hydroxyl, named from the Greek for "false" and "malachite", because of its similarity in appearance to the carbonate mineral malachite, Cu2(CO3)(OH)2. Both are green coloured secondary minerals found in oxidised zones of copper deposits, often associated with each other. Pseudomalachite is polymorphous with reichenbachite and ludjibaite. It was discovered in 1813. Prior to 1950 it was thought that dihydrite, lunnite, ehlite, tagilite and prasin were separate mineral species, but Berry analysed specimens labelled with these names from several museum
Key facts
- Mineral.name
- Pseudomalachite
- Mineral.category
- Phosphate minerals
- Mineral.image
- Pseudomalachite-Chrysocolla-160216.jpg
- Mineral.formula
- Cu5(PO4)2(OH)4
- Mineral.IMAsymbol
- Pmlc
- Mineral.molweight
- 575.7 g/mol
- Mineral.strunz
- 8.BD.05
- Mineral.dana
- 41.04.03.01
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P21/c
- Mineral.unit cell
- a = 4.47 Å, b = 5.75 Å, c = 17.05 Å; β = 91.06°; Z = 2
- Mineral.color
- Dark emerald green to blackish green
- Mineral.habit
- Crystals, which are rare, are prismatic, usually with uneven faces. Pseudomalachite is commonly compact, reniform or botryoidal, or it may be fibrous or in crusts and films.
- Mineral.twinning
- On {100}
- Mineral.cleavage
- Perfect on {100}, distinct on {010}
- Mineral.fracture
- Splintery or conchoidal
- Mineral.mohs
- 4.5–5
via Wikipedia infobox
Wikidata facts
- Subclass of
- phosphate mineral
- Named after
- pseudo-
- Image
- Pseudomalachite-108713.jpg
Show 8 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.BD.05
- type locality (geology)
- Rheinbreitbach
- Nickel-Strunz 9th edition (updated 2009)
- 8.BD.05
- Commons category
- Pseudomalachite
- crystal system
- monoclinic crystal system
- IMA Mineral Symbol
- Pmlc
- chemical formula
- Cu₅(PO₄)₂(OH)₄
- Strunz 8th edition (series ID, updated)
- VII/B.08
Sources (1)
via Wikidata · CC0