Stokesite

minerals

axinite

cassiterite

titanite

Images

Formula: CaSnSi₃O₉.2H₂O
Inosilicate (chain silicate)
Specific gravity: 3.185
Hardness: 6
Streak: White
Colour: Colourless, white, light blue
Environments

Pegmatites (typical)
Metamorphic environments

Stokesite is found in complex granite pegmatites and desilicated pegmatites (Dana ).

Localities

At the Urucum claim, Galiléia, Minas Gerais, Brazil, stokesite occurs in the pegmatite associated with albite, titanite, beryl, microlite and quartz (HOM).

At Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic, stokesite occurs in miarolitic cavities in a quartz-albite pegmatite (HOM).

At the El Hammam Mine, El Hammam, Ait Mimoune Caïdat, Khémisset Cercle, Khémisset Province, Rabat-Salé-Kénitra Region, Morocco, el Hammam, Morocco, stokesite occurs in tin-rich garnet skarn (Dana ).

At the type locality, Stamps and Jowl Zawn, Cliff outcrops, Botallack, St Just, Cornwall, England, UK, stokesite occurs on axinite associated with cassiterite (HOM).

At the Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA, stokesite occurs, often in association with cassiterite, and possibly derived from it (Dana ).

Back to Minerals