SCHEELITE (3 crystals), MUSCVOVITE with STANNITE (small cabinet)

Scheelite (3 crystals) a mineral composed of calcium tungstate with the formula CaWO4, serves as a significant source of tungsten, also known as wolfram.

Stannite is a sulfide mineral with the chemical formula Cu2FeSnS4, serving as a tin ore. Typically, it occurs alongside other sulfide minerals within tin veins, notably in locations such as Cornwall, England; Zeehan, Tasmania; and Bolivia. As a member of the chalcopyrite group of sulfides, stannite exhibits tetragonal symmetry in its crystal structure.

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.