Taolin Mine, Linxiang Co., Yueyang, Hunan, China

ZnS

Crystal System: cubic
Colour: yellow, light to dark brown, black, red-brown, colourless, light blue or green
Lustre: adamantine, resinous
Habitus: coarse to fine granular aggregates, massive, cleavable, fibrous, botryoidal, and stalactitic. Crystals are tetrahedral or dodecahedral, typically complex and distorted
Hardness: 3½ - 4
Fracture: conchoidal
Cleavage: perfect on {110}
Density: 4.096 g/cm³ 
Origin and geological occurrence: sphalerite, also known as blende or zinc blende, is the major ore of zinc. It is formed under a wide range of low-to-high T hydrothermal conditions in coal, limestone and other sedimentary deposits.

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Samples: 

	2.2  Sphalerite Massive aggregate with galena #sulfides
	2.3 Sphalerite Fibrous-radiated aggregates with galena, pyrite and quartz #sulfides
	2.18 Sphalerite Dark brown granular aggregates in quartz  #economic minerals
	2.26 Sphalerite Aggregate of black crystals #economic minerals