Sedimentary And Igneous (Mixed)

Orange Calcite

Calcium Carbonate (CaCO3)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Pyrite

Iron Disulfide (FeS2)

Calcite

Calcium Carbonate (CaCO3)

Hematite

Iron (III) oxide (Fe2O3)

Quartz Pebble

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Rose Quartz variety)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Fluorite

Fluoride (Calcium Fluoride - CaF2)

Magnetite / Iron Ore (likely Hematite-Magnetite mix)

Magnetite (Fe3O4)

Pyrite

Iron Sulfide (FeS2)

Quartz Geode

Silicon Dioxide (SiO2)

Hematite

Iron(III) oxide (Fe2O3)

Pyrite

Iron Sulfide (FeS2)

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Clear Quartz (Tumbled)

Silicon Dioxide (SiO2)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Clear Quartz

Silicon Dioxide (SiO2)

Chalcedony (Milky Agate/Quartz)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Blue Calcite

Calcium Carbonate (CaCO3)

Yellow Calcite

Calcium Carbonate (CaCO3)

Yellow Quartz (Citrine/Yellow Jasper)

Silicon Dioxide (SiO2)

Calcite

Calcium Carbonate (CaCO3)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Hematite

Iron(III) oxide (Fe2O3)

Ruby in Zoisite

Anyolite (composite of Corundum Al2O3 and Zoisite Ca2Al3(SiO4)(Si2O7)O(OH))

Gneiss

Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Graphite

Graphite (Native Carbon), Formula: C

Fluorite

Calcium Fluoride (CaF2)