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Species / Phosphates / #0019

Adamite

Phosphates orthorhombic #0019

Adamite is a mineral species described as arsenate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.

Formula Zn₂AsO₄(OH)
Strunz code 8.BB.30
Class Phosphates
Crystal system orthorhombic
Type locality Chañarcillo
Named after Gilbert Joseph Adam
Streak
Adamite specimen
Photo: Didier Descouens — CC BY-SA 3.0 · Wikimedia Commons

Composition

Zn
45.61%
O
27.9%
As
26.13%
H
0.35%

Molar mass 286.685 g/mol

Physical

Mohs
3.5
Density
4.234 g/cm³