Corundum var ruby

Bauxite

Feldspar Oligoclase Sodium calcium aluminum silicate

Stibnite cluster of prismatic crystals

Chrysocolla silicized

Magnetite aka Lodestone

Witherite Barium Carbonate

Quartz man made for electronics

Brucite 2

Willemite variety Troostite Zinc Orthosilicate

Cancrinite

Chevkinite

Anhydrite 3

Celestite geode section

Barite rose Barium sulfate

Lepidolite micaceous plates

Augite 2

Rhodonite pink

Atacamite 2

Geode

Arfvedsonite bladed

Stolzite with Quartz Lead Tungstate

Galena with scalenohedrons of Calcite

Guanine chemical structure