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)
monoclinicuncommonSulfosalts
Jamesonite
FePb4Sb6S14
The image displays a specimen of Jamesonite composed of numerous fine, needle-like crystals, exhibiting a metallic lead-gray luster and forming a dense, felted mass.
Jamesonite Physical Properties
Mohs Hardness
2.5Crystal System
monoclinicLuster
metallicStreak Color
grayish blackCleavage
good on {001}Fracture
unevenSpecific Gravity
5.5Colors
lead-gray, steel-gray, iron-blackTransparency
opaqueType Locality
Concepción del Oro, Zacatecas, MexicoMineral Group
SulfosaltsUses
ore of lead, ore of antimony, collector's itemAssociated Minerals
galena, sphalerite, pyrite, quartz, siderite, stibnite, tetrahedriteRarity
uncommonGeological Context
Jamesonite typically forms in low- to medium-temperature hydrothermal veins, often found in association with other lead, antimony, and sulfur-bearing minerals.
