Galena

PbS

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Galena is the principal ore of lead and one of the most widely distributed sulfide minerals. It commonly occurs with sphalerite, calcite, and fluorite. Its perfect cubic cleavage and high specific gravity make it easily identifiable.

النظام البلوري	Cubic (Isometric)
صنف المعدن	02 Sulfides and Sulfosalts
صلادة موس	2.5-2.8
الكثافة النوعية	7.40-7.60
اللون	Lead-gray
اللمعان	Metallic
لون الخط	Lead-gray
الانفصام	Perfect cubic {001}
الكسر	Subconchoidal
الشفافية	Opaque
الشكل البلوري	Cubic, octahedral