Vesuvianite

Nesosilicate

6–7Hardness (Mohs)

Ca₁₀(Mg,Fe)₂Al₄(SiO₄)₅(Si₂O₇)₂(OH)₄Chemistry

1Known origins & mines

Named after Mount Vesuvius where it was identified in 1795 - also called idocrase. Fine olive-green faceting material comes from Quebec's Jeffery mine and Italy's Monte Somma type locality.

Known origins & mines

Monte Somma Vesuvianite Crevices · Italy

Historic mine · Legendary locality

Type locality where vesuvianite was identified in 1795 - classic olive-green prisms from Vesuvius' somma-wall cavities.…

Mineral family: Nesosilicate

Grandidierite