Stibnite | China Polished Goods Corundum ranks 9 on the

Corundum ranks 9 on the Mohs hardness scale and is found in metamorphic and igneous environments worldwide

fossilized microbial mats dating back approximately 1

looking soft

is a strontium sulfate mineral with the chemical formula SrSO₄ and crystallizes in the orthorhombic system

This item is 3” x 2” and weighs 9

Stibnite | China Polished Goods Corundum ranks 9 on theStibnite is one of those minerals that barely feels real. With its sleek lead gray color and blade like metallic crystals, it often grows in dramatic sprays that look like something pulled straight from a sci fi landscape. Chemically, it is antimony sulfide (SbS) and serves as the primary ore of antimony, giving it both visual impact and geological importance. Toxicity Note: Stibnite contains antimony, which can be toxic with prolonged exposure to