
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)
orthorhombicuncommonSulfides
Stibnite
Sb2S3
The image displays a cluster of elongated, needle-like to prismatic crystals of stibnite, exhibiting a distinct metallic lead-gray luster. The crystals are arranged in a radiating or parallel aggregate, showcasing their characteristic striations.
Stibnite Physical Properties
Mohs Hardness
2Crystal System
orthorhombicLuster
metallicStreak Color
lead gray to blackCleavage
Perfect on {010}Fracture
unevenSpecific Gravity
4.52Colors
lead-gray, steel-gray, blackTransparency
opaqueType Locality
Baia Mare (Nagybánya), Maramures County, RomaniaMineral Group
SulfidesUses
ore of antimony, collector's specimensAssociated Minerals
quartz, calcite, barite, cinnabar, galena, pyriteRarity
uncommonGeological Context
Stibnite typically forms in low-temperature hydrothermal veins, often associated with hot springs and volcanic deposits. It is the most important ore mineral of antimony, found in various geological settings worldwide.