Barite | Gemopedia

This mineral is most often white or colorless, but can form in an array of colors. It is prized among collectors for its various crystal forms and habits. Barite can be easily identified by its weightiness, as it is much heavier than most similar minerals.
Alternate
Names
Baryte, Heavyspar, Desert Rose
Colors
Yellow, Brown, Colorless, Pink, Red, Green, Blue

Barite Classification

Common Name

Barite

Species

Barite

Variety

Colors

Yellow, Brown, Colorless, Pink, Red, Green, Blue

Alternate Names

Baryte, Heavyspar, Desert Rose

Gemstone Groups

Key Separations

RI, SG, cleavage, lack of pleochroism

Comments

Barite Optical Properties

Transparency

Transparent - Opaque

Refractive Index

1.636-1.648
Tolerance:(+0.001/-0.002)

Birefringence

0.012

Optic Character

Biaxial

Optic Sign

Positive

Polariscope Reaction

Doubly Refractive (DR)

Fluorescence

SWUV: Variable
LWUV: Variable

CCF Reaction

Pleochroism

None

Dispersion

Strength: weak fire

Comments

Barite Chemistry & Crystallography

Chemical Name

barium sulfate

Chemical Formula

BaSO4

Synthesis

Crystal System

Orthorhombic

Classification

Nature

Natural

Crystallinity

Crystalline

Comments

Barite Characteristic Physical Properties

Hardness

3-3.5

Streak

White

Specific Gravity

4.3-4.4 Range:0.10 Typical:4.5

Toughness

Poor

Inclusions

Luster

Vitreous

Stability

Poor

Fracture

Uneven

Cleavage

Perfect, in two directions

Comments

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