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Minerals - Fluckite | TerraCollect

Mineral - Fluckite

FluckiteCaMn²⁺(AsO₃OH)₂ · 2H₂O

Chemical Properties

Mineral Class

Arsenates

Toxicity

middle

Formula

CaMn²⁺(AsO₃OH)₂ · 2H₂O

Unit Cell

a=8,46 b=7,61 c=6,97 α=52° β=98° γ=96° Z=2

Physical Properties

Hardness

3.5 - 4

Streak

white

Density

Normal (2-3,5)

Optical Properties

Color

redpinkcolorless

Birefringence

0,024

Luster

Vitreous,

Waxy

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Crystal System

triclinic

Composition

Elements

Mass

As₂O₅

56,60

MnO

17,18

MgO

0,04

CaO

12,98

H₂O

13,20

Frankreich

Cleavage

Auf (010) perfekt, auf (100) gut, auf (101) schlecht

Fracture

nd

Tenacity

Point Group

Space Group

Habit

leafy, spherical, spear-shaped, radial, tabular

Formation

Oxidationszone von Carbonat-reichen Arsen-Lagerstätten

Paragenesis

Twinning

Rarity

Very rare

Synonyms

Fluckite