SCHEELITE (TWIN) with MUSCOVITE and QUARTZ, Xue Bao Ding Mine Ping Wu Sichuan Prov PRC (small cabinet)

Scheelite, a mineral composed of calcium tungstate with the formula CaWO4, serves as a significant source of tungsten, also known as wolfram.

Muscovite, commonly referred to as common mica, isinglass, or potash mica, is a hydrated phyllosilicate mineral composed of aluminum and potassium, represented by the chemical formula KAl2(AlSi3O10)(F,OH)2, or (KF)2(Al2O3)3(SiO2)6(H2O). This mineral is characterized by its exceptional basal cleavage, allowing it to produce extremely thin and often highly flexible sheets.