RockVault
Barite

Image: <bdi><a href="https://www.wikidata.org/wiki/Q126871366" class="extiw" title="d:Q126871366"><span title="photographer from the United States">Nessa Eull</span></a></bdi> (CC0)

orthorhombiccommonSulfates

Barite

BaSO4

This specimen displays a mass of white to light gray, bladed or tabular barite crystals, forming an aggregate approximately 15 cm across.

Barite Physical Properties

Mohs Hardness

3

Crystal System

orthorhombic

Luster

vitreous

Streak Color

white

Cleavage

Perfect on {001}, good on {210} and {110}

Fracture

uneven

Specific Gravity

4.5

Colors

white, gray, yellow, blue, brown, red, colorless

Transparency

transparent

Type Locality

Missouri, USA

Mineral Group

Sulfates

Uses

drilling mud, pigments, filler, medical imaging, radiation shielding

Associated Minerals

galena, sphalerite, fluorite, calcite, quartz, chalcopyrite

Rarity

common

Geological Context

Barite commonly forms in hydrothermal veins, sedimentary beds, and as concretions in sandstones and limestones, often precipitating from aqueous solutions due to its solubility.