Salts precipitated by evaporation of seawater

precipitation, halite, evaporites

Epidote mineralization in basalt.

crystals, alteration

Orpiment and Realgar

Aragonite crystals (square)

minerals

Apatite crystal in calcite (square)

minerals

Halite crystals

minerals

Different colors of calcite

minerals, green, yellow, blue, clear

rhombic cleavage in calcite

minerals

Zonation in feldspar

felsic, orthoclase

biotite and muscovite micas

Euhedral quartz crystals in vug

minerals

Different colors of calcite crystals

minerals

Kyanite crystals (vertical)

minerals

White asbestos: chrysotile (vertical)

minerals

Topaz crystal

minerals

Galena crystals on dolomite

crystal habit, cubic, minerals

Streak plate and test

mineral identification