Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Category
Browse organic gemstone (sedimentary classification) specimens identified by the Rock Identifier community.
Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
Iron Meteorite
Siderite (Iron-Nickel alloy)
Lunar Breccia Meteorite
Lunar Feldspathic Breccia
Red Siltstone
Siltstone (composed mainly of SiO2 and Fe2O3)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
Chondrite Meteorite
L or H Ordinary Chondrite
Lunar Meteorite (Feldspathic Breccia)
Lunar Feldspathic Breccia
Zebra Jasper
Tektite variety of Silicon Dioxide (SiO2) with inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Greenschist
Greenschist (containing Chlorite, Epidote, and Actinolite)
Lunar Feldspathic Breccia
Lunar Meteorite (Feldspathic Regolith Breccia)
Lunar Highlands Breccia (Meteorite)
Lunar Feldspathic Breccia
Martian Meteorite (Black Beauty)
Martian (basaltic breccia) Meteorite, Northwest Africa (NWA) 7034
Script Jasper
Silicon Dioxide (SiO2) with impurities
Sandstone
Arenite (Secondary classification based on grain size)
Chondrite Meteorite
L or H Ordinary Chondrite
Greenschist
Greenschist (containing Chlorite, Actinolite, and Epidote)
Greenschist
Chlorite Schist
Sandstone Cobble
Arenite (Secondary classification based on grain size)
Stony-Iron Meteorite (likely Mesosiderite or Ordinary Chondrite)
Meteorite (Silicate-Metal Matrix)
Lunar Meteorite
Lunar Feldspathic Breccia
Chondrite Meteorite
Ordinary Chondrite (OC)
Green Schist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
Amber
Succinates (Organic Gemstone)
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
Amber
Succinrite (Organic Gemstone)
Greenschist (Greenstone)
Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)
Amber
Succinicum (C10H16O)
Amber (Copal)
Fossilized Tree Resin
Amber
Organic gemstone (Succinite)
Iron Meteorite (likely Chondrite or weathered Iron-Nickel)
Meteorite (Fe-Ni alloy & silicates)
Rough Amber (likely Copal or immature Amber)
Organic gemstone / Succinite (if Baltic)
Amber (in Matrix/Shale)
Amber (Fossilized Tree Resin)
Red Coral (Precious Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
Bamboo Leaf Jasper
Silicified Siltstone or Jasper (SiO2)
Amber
Succinite (a fossilized organic resin)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Banded Chert
Microcrystalline Quartz (SiO2)
Amber (Copal)
Fossilized Tree Resin (C10H16O)
Chondrite Meteorite
Ordinary Chondrite (L or H group classification)
Red Jasper
Silicon Dioxide (SiO2)