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)
orthorhombicrareSulfides
Stibnite
Sb₂S₃
This specimen features a striking cluster of elongated, prismatic, lead-gray Stibnite crystals with a brilliant metallic luster. The crystals are well-formed and radiate outwards, showcasing their characteristic striations.
Stibnite Physical Properties
Mohs Hardness
2Crystal System
orthorhombicLuster
metallicStreak Color
gray to blackCleavage
perfect on {010}Fracture
subconchoidal to unevenSpecific Gravity
4.6Colors
lead-gray, dark gray, blackTransparency
opaqueType Locality
Ichinokawa mine, Saijo City, Ehime Prefecture, Shikoku Island, JapanMineral Group
SulfidesUses
ore of antimony, collectorAssociated Minerals
quartz, calcite, barite, cinnabar, galena, pyriteRarity
rareGeological Context
Stibnite typically forms in low-temperature hydrothermal veins, often associated with hot springs and volcanic activity. It can also be found in replacement deposits and sedimentary environments.
