description Crocoite Overview
Crocoite is a lead chromate mineral with the chemical formula PbCrO4. It commonly forms slender, elongated crystals in vivid orange, red, or reddish-orange colors, making well-formed specimens valued by mineral collectors, although its softness and lead content limit practical use as jewelry. The mineral was first identified from material found in the Ural region, while the Dundas district of Tasmania is noted for prominent crystal specimens.
help Crocoite FAQ
Why do mineral collectors prize crocoite?
Crocoite forms slender, vivid orange-red to reddish-orange crystals, and the world's finest specimens come from the Dundas area of Tasmania, Australia. Well-formed crystal sprays from that district are among the most striking display pieces in the mineral hobby.
What is crocoite made of?
It is a lead chromate mineral with the chemical formula PbCrO4. That composition means it is both soft, at roughly 2.5 to 3 on the Mohs scale, and contains toxic lead.
Can crocoite be cut into gemstones?
Only rarely, because it is soft, brittle, and has a distinct cleavage that makes faceting difficult. Most crocoite is preserved as natural crystal specimens rather than being cut.
Where does the name crocoite come from?
The name derives from the Greek 'krokos,' meaning saffron, referring to its saffron-orange color. Historically it is important because the element chromium was discovered in 1797 by Louis Nicolas Vauquelin through his analysis of crocoite.
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