Granite
Granite (Mainly Quartz SiO2 and Feldspar KAlSi3O8)
igneous
Category
Igneous Or Sedimentary
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Granite Pebble
Phaneritic Felsic Igneous Rock
igneous
Granite
Phaneritic Felsic Intrusive Rock
igneous
Seashell (Calcium Carbonate)
Calcium Carbonate (CaCO3)
mineral
Massive Quartz with Host Rock
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
Mineral
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Mineral
Blue Quartz
Quartz (SiO2) with inclusions
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Mineral or Sedimentary Rock (with mineral inclusions)
Aquamarine
Beryl (Be3Al2Si6O18 with Fe2+ impurities)
mineral
Shale
Lutaceous sedimentary rock
sedimentary
Granite
Granite (Felsic Plutonic Rock)
igneous
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Plutonic felsic igneous rock
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
K2 Jasper
Azurite in Granite
igneous
Greenstone (Epidosite)
Epidosite (Metamorphosed Basalt/Diabase)
metamorphic
Granite
Granite (a plutonic rock)
Igneous
Sedimentary Outcrop (Sandstone/Shale)
Sedimentary bedrock formation (variable composition)
sedimentary
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
sedimentary
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
sedimentary
Shale
Shale (clastic sedimentary rock composed of silt and clay-sized particles)
sedimentary
Shale
Fissile mudstone (Shale)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
gemstone
Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.)
Mixed Silicates and Sulfides (SiO2, FeS2)
mineral
Quartz with inclusions
SiO2
mineral
Ocean Jasper
Orbicular Jasper / Silicate
Mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Shale
Shale (Lutite)
sedimentary
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Granite
Granite (Phaneritic igneous rock)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Granitic Pegmatite
Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica
igneous
Smoky Quartz with Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)
mineral