Banded Agate (Pink Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Banded Agate (Pink Chalcedony)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Agate (Geode nodule fragment)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Coquina
Coquina (Bioclastic Limestone)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Quartzite pebble
Quartzite (primarily SiO2)
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Hematite
Hematite (Fe2O3)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
Greenstone / Greenschist
Chlorite schist / Meta-basalt
Pink Granite
Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
Amethyst Lace Agate / Banded Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Amethyst Geode (Thunderegg)
Silicon Dioxide (SiO2) - Quartz Variety: Amethyst
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
Quartz Druze (on Matrix)
Silicon Dioxide (SiO2)
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Pink Quartzite
Quartzite (primarily SiO2 with trace impurities of iron oxides)
Dendritic Agate (Tree Agate)
Chalcedony (Silicon Dioxide, SiO2) with Manganese or Iron Oxide inclusions
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Chert (Flint)
Microcrystalline quartz (SiO2)
Quartz with Mica inclusions (Gold-colored Mica)
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (Phlogopite/Muscovite) inclusions
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Turquoise and Hematite
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Prasiolite
Silicon Dioxide (SiO2)
Rough Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (often called Flint or Jasper based on color)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Crystal Cluster)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
White Marble
Recrystallized Calcite (CaCO3)