Question: what are the physical properties of zincite?
Answer: Lustre: Sub-Vitreous, Resinous, Waxy, Greasy, Silky, Dull, Earthy. Transparency: Transparent, Translucent, Opaque. Comment: Found in a wide variety of textures. Colour: Red, orange, yellow, white; rarely green. Streak: Orange-yellow. Hardness: 4 on Mohs scale. Tenacity: Brittle. Cleavage: