Pink Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineraloid
Category
Not A Rock (Animated Character)
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Labradorite
Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Black Obsidian
Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)
igneous
Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Antropogenic Glass / Mineraloid
Stichtite in Serpentine (Atlantisite)
Mg6Cr2CO3(OH)16·4H2O (Stichtite) / Mg3Si2O5(OH)4 (Serpentine)
metamorphic
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Amazonite
Microline Feldspar (KAlSi3O8)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Oxide impurities
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Dendritic Agate
Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)
mineral
Tiger's Eye (likely Hawk's Eye variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Botryoidal Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) containing iron impurities
mineral
Carnelian
Chalcedony (Silicon Dioxide, SiO2 with Iron Oxide impurities)
mineral
Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Indigo Gabbro (also known as Mystic Merlinite)
Gabbro (composed of Plagioclase Feldspar, Pyroxene, and minor Magnetite/Ilmenite)
igneous
Bumble Bee Jasper
Volcanic Tuff (mixture of SiO2, CaCo3, S, and As2S3)
igneous
Quartzite Pebbles
Quartzite (SiO2 silicon dioxide dominant)
metamorphic
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Quartzite (Potentially Ferruginous)
Quartzite (SiO2)
metamorphic
Red Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Jasper
Silicon dioxide / Chalcedony (SiO2)
Sedimentary
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
mineral
Schist
Mica Schist
metamorphic
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
mineral
Quartz (Raw Rose and Milky varieties)
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Red Quartzite (likely Purple/Red variety)
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Amazonite
Potassium Feldspar (Microcline), K(AlSi3O8)
mineral