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Minerals - Borcarite | TerraCollect

Mineral - Borcarite

BorcariteCa₄Mg(B₄O₆(OH)₆)(CO₃)₂

Chemical Properties

Mineral Class

Borates

Toxicity

none

Formula

Ca₄Mg(B₄O₆(OH)₆)(CO₃)₂

Unit Cell

Physical Properties

Hardness

4

Streak

white

Density

Normal (2-3,5)

Optical Properties

Color

greenblue

Birefringence

0.067

Luster

Vitreous,

Greasy

Transparency

translucent,

transparent

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Karten-Ebenen

Geologische KarteSatelliten Karte

Cleavage

Fracture

Tenacity

Point Group

monoclinic-prismatic - 2/m

Space Group

C2/m (12)

Habit

radial, tabular

Formation

Metasomatism (hydrothermal from Brucite)

Paragenesis

Twinning

Rarity

Rare

Synonyms

Borcarite