Mineral (Variant Of Quartz)

Granite with Biotite and Quartz

Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, and K(Mg,Fe)3AlSi3O10(OH)2)

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Druzy Quartz (part of a Geode)

Silicon Dioxide (SiO2)

Geode (Unopened)

Crystalline Quartz Geode (SiO2)

Sandstone (likely Iron-rich or Arkosic)

Arenite (SiO2 with FeO(OH) or Fe2O3 staining)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese or Iron

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (with potential iron inclusions)

Silicon Dioxide (SiO2)

Pink Granite with Quartz Vein

Phaneritic Plutonic Felsic Rock (K-feldspar + Quartz + Plagioclase + Mica)

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2)

Granite (Pink/Red variety)

Phaneritic Felsic Intrusive Igneous Rock (composed primarily of Quartz, K-Feldspar, and Plagioclase)

Milky Quartz (Water-worn pebble/nodule)

Quartz (Silicon Dioxide - SiO2)

Clear Quartz (Tumbled)

Quartz (Silicon Dioxide - SiO2)

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Gold Nugget (Placer Gold)

Native Gold (Au)

Quartz (Druzy/Macro-crystalline)

Silicon Dioxide (SiO2)

Bicolor Quartz (Milk Quartz with Slag or Dark Inclusions)

Silicon Dioxide (SiO2) with impurities

Aventurine

Aventurine Quartz (SiO2 with inclusions)

Gold and Silver (Metal Components of an Antique Pocket Watch)

Native Gold (Au) and Native Silver (Ag)

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)

Diorite

Intermediate plutonic igneous rock

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Granite

Granite

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Yellow Quartz / Quartzite Pebble

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Quartz (specifically Milky or Clear Chunk)

Silicon Dioxide (SiO2)

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Red Sandstone

Ferruginous Sandstone (SiO2 dominated with Fe2O3 cement)

Smoky Quartz

Silicon Dioxide (SiO2)

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

White Quartz Pebbles

Quartz (Silicon Dioxide, SiO2)

Crystalline Quartz (Rough)

Quartz (Silicon Dioxide, SiO2)

Sodalite (blue beads) and Clear Quartz (clear beads)

Sodalite: Na4Al3Si3O12Cl; Quartz: SiO2

Tiger's Eye

Tiger's Eye (a variety of Quartz, SiO₂)

Amethyst

SiO2 (Silicon Dioxide)