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Minerals - Khaidarkanite | TerraCollect

Mineral - Khaidarkanite

KhaidarkaniteCu₄Al₃(OH)₁₄F₃ · 2H₂O

Chemical Properties

Mineral Class

Halides

Toxicity

none

Formula

Cu₄Al₃(OH)₁₄F₃ · 2H₂O

Unit Cell

a=12,35 b=2,91 c=10,37 β=98° Z=1

Physical Properties

Hardness

2.5

Streak

blue

Density

Normal (2-3,5)

Optical Properties

Color

blue

Birefringence

0,063

Luster

Vitreous

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Point Group

Composition

Elements

Mass

Na₂O

1,6

CuO

46,1

Al₂O₃

22,4

SiO₂

0,8

SO₃

2,3

H₂O

22,3

F

8,1

Kirgistan

Cleavage

nd

Fracture

nd

Tenacity

nd

Space Group

Habit

coarse, fibrous, crusty, massive, acicular

Formation

Oxidationszone von Fluorit-haltigen Kupfer-Lagerstätten

Paragenesis

Twinning

Rarity

Very rare

Synonyms

Khaidarkanite

Groups and Members

Cyanotrichit-Gruppe