Quartz (Clear/Smoky Geode fragment)
Silicon Dioxide (SiO2)
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Quartz (Clear/Smoky Geode fragment)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Quartz (Quartzite)
Silicon Dioxide (SiO2)
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
Quartz (Water-worn pebble)
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron impurities
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Smoky Quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine type/Tumbled Quartz)
Silicon Dioxide (SiO2)
Banded Agate (specifically Sardonyx Agate)
Silicon Dioxide (SiO2) - Chalcedony variety
Amethyst on Agate/Basalt Matrix
Silicon Dioxide (SiO2) with iron impurities
Pyrite
Iron Sulfide (FeS2)
Pyrite in Matrix (Commonly called Fool's Gold)
Iron Sulfide (FeS2)
Aquamarine
Beryl (Be3Al2Si6O18)
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Banded Calcite (Mexican Onyx)
Calcium Carbonate (CaCO3)
Ferruginous Quartz
Iron-stained Quartz (SiO2 with Fe2O3 impurities)
Amethyst
Amethyst (variety of Quartz, SiO2)
Beryl (Emerald Variety)
Beryllium Aluminum Silicate (Be3Al2(SiO3)6)
Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Agate (Polished Nodule)
Agate (Silicon Dioxide, SiO2)
Chrysocolla Chalcedony
Hydrated Copper Phyllosilicate (Cu,Al)2H2Si2O5(OH)4 + SiO2
Milky Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
Milky and Citrine-type Quartz
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine/Yellow Chalcedony)
Silicon Dioxide (SiO2)
Amethyst (Chevron/Dream Amethyst)
Silicon Dioxide (SiO2) with iron impurities
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Iron-Stained Quartz Pebble
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Goethite) inclusions
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Gold Nuggest
Native Gold (Au)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese