Shungite
Carbonaceous rock (primarily amorphous carbon)
Mineraloid
Category
Mineral (Specifically A Mineraloid)
Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
Mineral
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
mineraloid (man-made)
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
mineraloid (man-made)
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Red Granite
Phaneritic Felsic Intrusive Igneous Rock (primarily K-feldspar, Quartz, and Biotite)
igneous
Bowling Ball (Brunswick T-Zone Deep Space)
Polyester resin / Polyurethane polymer
Synthetic (not a natural rock)
Pink Granite (Water-worn Cobble)
Granite (Alkali-feldspar granite)
igneous
Spinosaurus Tooth Fossil
Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)
sedimentary
Amber
Succinite
Organic Mineraloid
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite (fossilized resin)
Organic Mineraloid
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Amber
Succinicum (Succinite); C10H16O
Mineraloid (Organic)
Amber
Succinite (a specific high-quality amber from the Baltic)
Organic Mineraloid
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Amber
Succinite (Fossilized Resin C10H16O)
Organic Mineraloid
Amber
Succinite (fossilized tree resin)
Organic Mineraloid
Amber
Succinite (C10H16O)
Mineraloid (Organic)
Amber
Succinite (Fossilized Tree Resin)
Organic Mineraloid
Amber
Succinite (Fossilized Tree Resin), C10H16O
Organic Mineraloid
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Amber
Succinite (fossilized resin)
Organic Mineraloid
Red Amber (Burmite/Cherry Amber)
Succinite / Retinite (Organic Fossilized Resin, C10H16O)
Mineraloid (Organic)
Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Mineraloid (Organic)
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Basalt
Basalt (composition of plagioclase feldspar and pyroxene)
Igneous
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Pink Granite / Gneiss
Felsic Plutonic Rock (Granite) with Gneissic banding
igneous / metamorphic
Chert (specifically Gray Chert)
Chert (SiO2)
sedimentary
Pink Granite
Granite (Alkali-feldspar granite)
igneous
Greenstone Porphyry
Porphyritic Metavolcanic Rock
igneous
Apache Tear
Hydrated Obsidian (Natural Volcanic Glass)
igneous
Chert (Nodule)
Microcrystalline quartz (SiO2)
sedimentary
Granite (Pink/Red)
Phaneritic Igneous Rock (Rich in K-Feldspar)
igneous
Basalt with Magnetite
Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)
igneous
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
metamorphic
Larvikite
Monzonite (intermediate intrusive igneous rock containing plagioclase, alkali feldspar, augite, and biotite)
igneous
Mahogany Obsidian Arrowhead
Obsidian (volcanic glass) with Hematite inclusions
igneous