BERYL (TABULAR) VAR AQUAMARINE on MUSCOVITE (MICA) (small cabinet)

TABULAR BERYL (AQUAMARINE) , MICA

Beryl is a mineral made up of beryllium aluminum silicate, represented by the chemical formula Be3Al2Si6O18. Notable varieties of beryl include emerald and aquamarine. This mineral can form naturally occurring hexagonal crystals that may reach several meters in length, although well-terminated specimens are uncommon. While pure beryl is colorless, it often exhibits various hues due to impurities, including green, blue, yellow, pink, and the rare red. Beryl serves as an important ore for beryllium.

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.