Quartz

Massive Quartz (Milky or Gray)

Silicon Dioxide (SiO2)

Chrysocolla

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O

Quartz (Milky or Iron-Stained)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Green Aventurine (Green Quartz)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Quartzite

Quartzite (Primary mineral: Quartz, SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite Cobble

Metamorphosed Quartz Sandstone (primarily SiO2)

Yellow Quartz (Citrine-colored Quartz)

Silicon Dioxide (SiO2)

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with varying mineral impurities

Quartzite

Quartzite (SiO2)

Quartzite Pebble (Beach Pebble)

Quartzite (primarily SiO2)

Rose Quartz

Pink Quartz (SiO2)

Rose Quartz

Silicon dioxide (SiO2) with trace impurities of titanium, iron, or manganese

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Rose Quartz

Silicon Dioxide with trace inclusions (SiO2)

Quartz (Riverstone / Cobble)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese

Quartz (Rose/Milky variety)

Silicon Dioxide (SiO2)

Pink Quartz (Inclusion-rich Quartzite)

SiO2 (Silicon Dioxide) with Iron Oxide / Hematite inclusions

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Rose Quartz

Quartz (Silicon Dioxide - SiO2) with trace impurities of Titanium, Manganese, or Iron

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sandstone with trace fossil

Sandstone, possibly with Skolithos or similar trace fossil

Rose Quartz (tumbled)

Rose Quartz (variety of Quartz, chemical formula SiO₂)

Rose Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Water-Worn Pebble)

Quartz (Silicon Dioxide, SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

BROWN GRANITE (likely 'Tan Brown' or similar)

Granite (specifically a variety rich in orthoclase feldspar, often with biotite and possibly hornblende)

Yellow Quartzite

Quartzite (SiO2 with iron oxide inclusions)

Sandstone (Quartzose)

Arenite (SiO2 based)

Quartzite Cobble / Quartzite Pebble

Quartzite (SiO2)

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Pink Quartzite

Quartzite (SiO2 with iron oxide inclusions)