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Minerals - Kernowite | TerraCollect

Mineral - Kernowite

KernowiteCu₂Fe(AsO₄)(OH)₄ · 4H₂O

Chemical Properties

Mineral Class

Arsenates

Toxicity

low

Formula

Cu₂Fe(AsO₄)(OH)₄ · 4H₂O

Unit Cell

a=12,92 b=7,54 c=10,03 β=91° Z=4

Physical Properties

Hardness

2 - 2.5

Streak

greenblueblue green

Optical Properties

Color

green

Birefringence

Luster

Vitreous,

Greasy

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Point Group

Composition

Elements

Mass

P₂O₅

3,73

As₂O₅

23,05

Al₂O₃

0,98

Fe₂O₃

10,85

CuO

36,38

H₂O

25,01

England

Density

Normal (2-3,5)

Cleavage

Auf (110), (011), undeutlich

Fracture

conchoidal,

uneven

Tenacity

Space Group

Habit

leafy, Octahedron, spear-shaped, tabular

Formation

Oxidationszone von Kupfer-Lagerstätten

Paragenesis

Twinning

Rarity

Rare

Synonyms

Kernowite