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Minerals - Posnjakite | TerraCollect

Mineral - Posnjakite

PosnjakiteCu₄[(OH)₆|SO₄]·H₂O

Chemical Properties

Mineral Class

Sulphates

Toxicity

none

Formula

Cu₄[(OH)₆|SO₄]·H₂O

Unit Cell

Physical Properties

Hardness

2 - 3

Streak

blue

Density

Normal (2-3,5)

Optical Properties

Color

blue

Birefringence

Luster

Vitreous

Transparency

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Point Group

Cleavage

Fracture

Tenacity

Space Group

Habit

crusty, massive

Formation

Oxidationszone von Kupfer-Lagerstätten

Paragenesis

Twinning

Rarity

Rarely

Synonyms

Posnjakite