Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Category
Mineral (Specifically A Mineraloid)
Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically A Mineraloid) in the encyclopedia
View all →
Red Amber (Burmite/Cherry Amber)
Succinite / Retinite (Organic Fossilized Resin, C10H16O)
Mineraloid (Organic)
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Mineraloid (Organic)
Amber
Succinite (fossilized resin)
Organic Mineraloid
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Amber
Succinicum (Succinite); C10H16O
Mineraloid (Organic)
Amber
Succinite
Organic Mineraloid
Amber
Succinite (a specific high-quality amber from the Baltic)
Organic Mineraloid
Pebble
Lithic fragment (Quartzite or general rock pebble)
sedimentary
Crushed Stone Ballast
Crushed Limestone or Granite Aggregate
sedimentary
Jasper Breccia
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Ruby (Faceted)
Corundum (Al2O3 with Cr trace elements)
gemstone
Basalt
Basalt (Mafic volcanic rock)
igneous
Moqui Marble
Ironstone Concretion (Goethite/Hematite layered over Sandstone)
sedimentary
Bowling Ball (Brunswick T-Zone Deep Space)
Polyester resin / Polyurethane polymer
Synthetic (not a natural rock)
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Red Jasper (Chert)
Silicon dioxide with iron inclusions (SiO2)
sedimentary
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Granite
Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)
igneous
Granite Pebble
Granite (Felsic Plutonic Rock)
igneous
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Quartz, K-Feldspar, Plagioclase)
igneous
Pink Granite (Water-worn Cobble)
Granite (Alkali-feldspar granite)
igneous
Vesicular Basalt (or Scoria)
Extrusive Igneous Rock (Mafic)
igneous
Blue Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
gemstone
Yellow Jasper
Silicon dioxide (SiO2)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Pink Granite
Phaneritic Acidic Igneous Rock (Rich in K-feldspar)
igneous
Blue Sapphire
Corundum (Al2O3)
gemstone
Soapstone
Steatite
metamorphic
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
mineraloid (synthetic)
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
mineraloid / man-made glass
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
mineraloid (man-made glass)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin
gemstone
Spinosaurus Tooth Fossil
Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)
sedimentary
Serpentine
Serpentine Group (Mg3Si2O5(OH)4)
metamorphic
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and organic impurities
sedimentary
Basalt
Basalt (composition of plagioclase feldspar and pyroxene)
Igneous