Junitoite

sorosilicate

kinoite

Formula: CaZn2Si2O7.H2O
Sorosilicate
Specific gravity: 3.5
Hardness: 4½
Streak: Colourless
Colour: Colourless to milky white
Environments

Metamorphic environments

At the type locality, the Christmas mine, Gila county, Arizona, USA, junitoite occurs in a retrogressively altered skarn, with its occurrence closely related to the breakdown of sphalerite in the ores (AM61.1255-1258). It is associated with kinoite, apophyllite, tyrolite, sphalerite, clay minerals, calcite, and xonotlite (Dana, Mindat, HOM).

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