Clinohedrite

clinohedrite

hancockite

kinoite

stringhamite

Images
Formula: CaZn(SiO4).H2O
Nesosilicate (insular SiO4 groups)
Crystal System: Monoclinic
Specific gravity: 3.28 to 3.335 measured, 3.32 calculated
Hardness: 5½
Streak: White
Colour: Colourless to white, pale amethystine
Solubility: Gelatinised in hydrochloric acid
Common impurities: Fe,Al,Mn,Mg
Environments:

Metamorphic environments
Hydrothermal environments

At the Christmas Mine, Christmas, Banner Mining District, Gila County, Arizona, USA, clinohedrite occurs with stringhamite, kinoite and apophyllite (HOM).

At the type locality, the Trotter Mine, Franklin Mine, Franklin, Sussex County, New Jersey, USA, clinohedrite occurs in a hydrothermally altered, metamorphosed zinc-manganese-iron silicate-oxide orebody, with willemite, axinite, hancockite, roeblingite, hardystonite, esperite, datolite, bustamite, andradite, nasonite, glaucochroite, calcite, larsenite, hodgkinsonite and franklinite (HOM).
Clinohedrite from the Trotter Mine - Image

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