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
This specimen features a rich covering of highly lustrous, cherry-red crocoite crystals, forming a dramatic display of vibrant color and sharp forms.
Crocoite Physical Properties
Mohs Hardness
2.5Crystal System
monoclinicLuster
adamantineStreak Color
orange-yellowCleavage
good on {110} and {001}, poor on {100}Fracture
conchoidalSpecific Gravity
6Colors
red, orange-red, yellow-orangeTransparency
translucentType Locality
Dundas mineral field, Zeehan district, Tasmania, AustraliaMineral Group
ChromatesUses
collector, pigment (historically), minor ore of chromiumAssociated Minerals
cerussite, pyromorphite, galena, quartz, limoniteRarity
uncommonGeological Context
Crocoite is a secondary mineral found in the oxidized zones of lead deposits, where lead-bearing minerals are altered in the presence of chromium-rich solutions. It typically forms in arid or semi-arid environments.
