Ratum Quarry, Vosseveld, Winterswijk, Gelderland, Netherlands

FeS₂

Crystal System: cubic
Colour: pale brass-yellow
Lustre: metallic
Habitus: usually cubic, pyritohedral, octahedral, and combinations of these forms (along with other rarer forms). Rarely elongated to acicular crystals. Commonly granular, globular (sometimes fibrous-radiating), framboidal, stalactitic. Twinning is relatively common
Hardness: 6 - 6½
Fracture: irregular/uneven, conchoidal
Cleavage: poor, indistinct on {100}
Density: 5.01 g/cm³ 
Origin and geological occurrence: it is common in a wide variety of geological environments.

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Smorf link

Samples:

	2.10 Pyrite Striated cubic crystals #economic minerals
	2.11 Pyrite #sulfides
	2.12 Pyrite Oxydized cubic crystal in schist #sulfides
	2.13 Pyrite Deeply striated crystals #sulfides
	2.14 Pyrite Pyritohedral crystals with quartz #sulfides
	2.16 Pyrite S Striated cubic crystals #sulfides
	2.25 Pyrite Distorted cubic, striated, crystals #sulfides
	2.29  Pyrite #sulfides