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Formula: Cu2Se
Selenide, tetragonal
paramorph of
isometric berzelianite,
selenium-bearing mineral
Crystal System: Tetragonal
Specific gravity: 7.01 calculated
Hardness: 1½ to 2
Colour: Creamy white with a slight pinkish yellow tint
Environments
Bellidoite is formed at medium to low temperatures with other hydrothermal selenides and sulphides. Associated minerals
include berzelianite, umangite,
eskebornite, klockmannite,
djurleite, digenite,
siderite and calcite
(HOM).
Localities
At the type locality, the Habři Mine, Rožná deposit, Rožná, Žďár nad Sázavou District, Vysočina Region, Czech Republic, bellidoite
occurs as anhedral grains 0.1 - 0.3 mm in diameter in calcite, associated with
berzelianite, umangite,
eskebornite, eucairite,
digenite, siderite,
klockmannite and djurleite
(AM 60.736, Mindat).
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