Organic Gemstone (Sedimentary Classification)

Greenschist

Chlorite Schist

Greenschist

Greenschist (containing Chlorite, Actinolite, and Epidote)

Amber

Organic gemstone (Succinite)

Rough Amber (likely Copal or immature Amber)

Organic gemstone / Succinite (if Baltic)

Tiger’s eye

Quartz variety, primarily silicon dioxide (SiO₂); fibrous quartz pseudomorph after crocidolite asbestos

Granite or granitic rock fragment

Felsic intrusive igneous rock, typically quartz + feldspar + mica; exact species uncertain from the image

Green Schist

Greenschist (composed of Chlorite, Actinolite, and Epidote)

Iron-rich meteorite candidate

Unclassified stony-iron or iron meteorite candidate; possibly limonite/hematite-bearing terrestrial rock

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock

Stony-Iron Meteorite (likely Mesosiderite or Ordinary Chondrite)

Meteorite (Silicate-Metal Matrix)

Lunar Meteorite

Lunar Feldspathic Breccia

Chondrite Meteorite

Ordinary Chondrite (OC)

Rounded granitic gneiss or granitoid boulder

Biotite-bearing orthogneiss; chiefly quartz, feldspar, and biotite

Possible iron-rich meteorite fragment

Undetermined; possible stony-iron or iron-oxide-rich meteorite

Greenschist (Greenstone)

Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)

Amber (in Matrix/Shale)

Amber (Fossilized Tree Resin)

Iron-rich meteorite candidate

Unclassified meteoritic iron–stone material; possible stony-iron meteorite or terrestrial ironstone

Bamboo Leaf Jasper

Silicified Siltstone or Jasper (SiO2)

Jasper

Microcrystalline quartz (SiO2)

Red Coral (Precious Coral)

Corallium rubrum (Calcium Carbonate, CaCO3)

Amber

Succinite (a fossilized organic resin)

Green Moss Agate

Silicon Dioxide with inclusions (SiO2)

Iron meteorite candidate

Fe–Ni metallic meteorite, possibly an iron meteorite fragment

Possible iron meteorite

Iron meteorite, likely kamacite–taenite alloy

Conglomeratic volcanic breccia

Lithic volcanic breccia, likely andesitic or basaltic

Feldspar-rich igneous rock, likely granite or gneiss fragment

Granite-like quartz–feldspar rock; exact identification is uncertain from the blurred image

Amber

Succinite (Organic Gemstone)

Banded Chert

Microcrystalline Quartz (SiO2)

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron Oxide inclusions

Unidentified metallic-looking mineral fragment

Indeterminate; possible galena, magnetite, or metal-rich sulfide/ore fragment

Possible iron-rich meteorite

Uncertain; likely an ordinary chondrite (stony meteorite), pending testing

Iron meteorite candidate

Likely iron-rich meteorite, possibly an ordinary chondrite or weathered iron meteorite; confirmation requires testing

Metallic iron meteorite (probable)

Iron meteorite, typically kamacite–taenite (Fe–Ni alloy)

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Polished leopard jasper (orbicular or brecciated jasper)

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral inclusions

Amber (Copal)

Fossilized Tree Resin (C10H16O)

Pearls (likely freshwater cultured pearls)

Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin

Red Jasper

Silicon Dioxide (SiO2)

Iron meteorite (probable)

Fe–Ni metal, commonly kamacite and taenite

Iron-rich meteorite candidate

Unclassified iron meteorite or stony-iron meteorite; confirmation requires chemical and nickel testing

Amber

Succinicum (Organic Gemstone - Resinite)

Quartz-rich rock, likely milky quartz vein material

Quartz (SiO₂), possibly quartzite or quartz-bearing pegmatite