Mineral (Specifically A Variety Of Quartz)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz with Epidote or Chlorite inclusions

Silicon Dioxide (SiO2) with inclusions of Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Rose Quartz

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Citrine

Quartz (SiO₂)

Amethyst (Rose-tinted variation)

Silicon Dioxide (SiO2) with trace iron impurities

Sandstone (likely Quartzite-grade)

Arenite (primarily SiO2)

Blue Chalcedony

Silicon Dioxide (SiO2)

Amethyst (Quartz variety)

Amethyst - SiO2 (Silicon Dioxide with Iron impurities)

Quartz (Smoky/Grey variety)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Chert (Black Chert/Flint)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO₂)

Tiger's Eye (dark/grey variant)

Pseudomorph of Quartz after Crocidolite (SiO2)

Banded Agate (Tumbled)

Agate (Variety of Chalcedony/Quartz), SiO2

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Riverstone (Water-worn Quartzite)

Quartzite (SiO2)

metamorphic

Quartz

Silicon Dioxide (SiO2)

Smoky Quartz with Calcite/Quartz Veining

Silicon Dioxide (SiO2)

Chert (and Flint)

Chert (SiO2)

Honey Calcite (Orange Onyx)

Calcium Carbonate (CaCO3)

Blue Chalcedony

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Blue Lace Agate

Chalcedony (Silicon Dioxide, SiO2)

Chert (Chert Nodule)

Microcrystalline quartz (SiO2)

Ferruginous Quartz

Iron-stained Quartz (Silicon Dioxide, SiO2 with Fe2O3 inclusions)

Milky Quartz

Silicon Dioxide (SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Chert (Gravel / Pebble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO₂)

Nuummite

Nuummite (ortho-amphibole rock)

metamorphic

Tree Agate

Dendritic Agate (Silicon Dioxide, SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Orca Agate (Chalcedony)

Silicon Dioxide (SiO2) with inclusions

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)