Formula: Zn and Ni vanadate
Origin of name: For L. Kolovrat-Chervinsky, Russian radiologist
Crystal system: Unknown
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Yellow to greenish yellow
Diaphaneity:
Luster:
Habit: Crusts and incrustations, botryoidal
Hardness:
Specific gravity:
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Formula uncertain; species status uncertain
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