Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
monoclinicuncommonChromates
Crocoite
PbCrO4
Crocoite typically forms vibrant, slender, prismatic crystals with a brilliant red-orange color, often found in radiating or intergrown aggregates.
Crocoite Physical Properties
Mohs Hardness
2.5Crystal System
monoclinicLuster
adamantineStreak Color
orange-yellowCleavage
good on {110}, distinct on {001}Fracture
conchoidalSpecific Gravity
5.9Colors
red-orange, orange-yellowTransparency
translucentType Locality
Congonhas do Campo, Minas Gerais, Southeast Region, BrazilMineral Group
ChromatesUses
collector, minor ore of lead, minor ore of chromiumAssociated Minerals
goethite, cerussite, pyromorphite, quartzRarity
uncommonGeological Context
Crocoite is a secondary mineral found in the oxidized zones of lead deposits, where lead-bearing minerals (like galena) and chromium-bearing minerals (like chromite) are present. It forms under specific conditions of weathering.
