Formula: Cu3As2O7(OH)2
Origin of name: For the Swiss scientist Paracelse (1493-1541), who was Philippus Theophrastus van Hohenheim. Paracelse is a Greek-Roman translation of Hohenheim.
Crystal system: Hexagonal
Crystal class: 3 2/m
Twinning:
Unit cell:
Colour: Emerald-green to blue-green, dark pistachio green
Diaphaneity: Translucent
Luster: Vitreous-adamantine
Habit: In minute crystals, platy or finely parallel fibrous, in botryoidal crusts, to 0.5 cm; may be interstratified with other layer-structure minerals.
Hardness: 3.5
Specific gravity: 4.00
Cleavage: 1, {0001} perfect
Tenacity: Conchoidal fracture, brittle
Streak: Pale green, yellowish green
Synonyms/varieties:
Comments: Found included in cuprite and pseudomorphous after olivinite. Related to olivinite.
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