Bixbyite

(Mn,Fe)2O3

This image displays several sharp, black, cubic crystals of bixbyite, exhibiting a metallic to submetallic luster, with a pen providing scale.

Bixbyite Physical Properties

cubic

metallic

black

none

conchoidal

4.94

black, dark reddish-brown

opaque

Thomas Range, Juab County, Utah, USA

Oxides

collector

topaz, hematite, pseudobrookite, spessartine, sanidine

uncommon

Bixbyite is a high-temperature mineral typically found in rhyolitic volcanic rocks, often occurring in vugs or cavities formed by fumarolic activity.

Dravite

Boulangerite

Azurite

Smithsonite

Euclase

Natrolite