Hydrozincite
Chemical Formula	Zn5(CO3)2(OH)6
Species	Carbonates
Crystal System	Monoclinic
Mohs Scale	2
Specific Gravity	3.5-4
Color	White to grey, stained pale pink, or pale yellow or brown; colourless in transmitted light.
Streak	White
Luster	Silky, Pearly, Dull, Earthy
Refractive Index	n = 1.630 n = 1.642 n = 1.750
Diaphaneity	Transparent, Translucent
Cleavage	PerfectOn .
Fracture	Irregular/Uneven
Crystal Habit：Lathlike or bladed crystals uncommon, in fibrous, stalactitic, reniform, pisolitic aggregates; also earthy, chalky, massive
Geological Setting：Oxidized zones of zinc mineral deposits, particularly those with sphalerite.