RockVault
Antimony

Image: <bdi><a href="https://www.wikidata.org/wiki/Q126871365" class="extiw" title="d:Q126871365"><span title="photographer from the United States">Shannon Heinle</span></a></bdi> (CC0)

trigonalrareNative Elements

Antimony

Sb

The image displays a 9 cm specimen of native antimony, exhibiting a distinct metallic, silvery-white to tin-white color, possibly with some tarnish. It typically occurs in massive, granular, or lamellar forms.

Antimony Physical Properties

Mohs Hardness

3

Crystal System

trigonal

Luster

metallic

Streak Color

gray to black

Cleavage

perfect on {0001}

Fracture

uneven to subconchoidal

Specific Gravity

6.65

Colors

tin-white, silvery-white, yellowish-white, iridescent

Transparency

opaque

Type Locality

South Australia (general region)

Mineral Group

Native Elements

Uses

alloys (e.g., with lead for batteries, type metal), semiconductors, flame retardants, pigments

Associated Minerals

stibnite, kermesite, valentinite, arsenopyrite, pyrite, quartz, calcite

Rarity

rare

Geological Context

Native antimony forms in hydrothermal veins, often at low to moderate temperatures, and can be found in association with other antimony-bearing minerals like stibnite. It is a rare mineral, making it a minor ore source for the element antimony.