Organic Gemstone (Sedimentary Classification)

Weathered quartz-rich rock, possibly granite or quartzite

Indeterminate; likely quartz (SiO₂) with feldspar and minor mica, or quartzite

Amber

Succinite (Fossilized Tree Resin, C10H16O)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Weathered quartz-rich rock, possibly granite or quartzite

Indeterminate; likely quartz (SiO₂) with feldspar and minor dark minerals

Likely galena-bearing ore or graphite-rich sulfide fragment

Indeterminate; possibly galena (PbS) with quartz, or graphite-rich schist

Amber

Succinite

Chert

Microcrystalline Quartz (SiO2)

Small metallic meteorite fragment (probable stony-iron or iron meteorite)

Unclassified meteoritic material; exact classification requires chemical and petrographic testing

Likely metallic meteorite fragment

Undetermined iron or stony-iron meteorite; mineralogy requires testing

Greenschist (Greenstone)

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

Iron-rich meteorite candidate

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

Amber

Succinite (C10H16O)

Picture Jasper

SiO2

Chert (Flint)

Silicon Dioxide (SiO2)

Amber and Citrine Quartz

Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)

Iron-rich meteorite (probable stony-iron or weathered iron meteorite)

Unclassified meteorite; possible ordinary chondrite with iron-nickel metal and weathering products

Jasper

Microcrystalline Quartz (SiO2)

Amber (Rough Baltics/Beach Specimen)

Succinicum (Organic Gemstone - Fossilized Resin)

River Jasper (Chert/Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Chert (Basanite / Jasperoid)

Microcrystalline Quartz (SiO2)

Chert (Flint)

Silicon Dioxide (SiO2)

Iron-rich chondritic meteorite candidate

Unclassified stony meteorite; possible ordinary chondrite (H/L type)

Amber

Succinate (Organic Fossilized Resin)

Chert / Flint

Silicon dioxide (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Pink Opal

Hydrated silica (SiO2 "n H2O)

Amber

Fossilized Tree Resin

Possible iron meteorite fragment

Iron–nickel meteorite, likely kamacite–taenite alloy

Amber (possibly a small polished amber cabochon)

Fossilized tree resin; amber is an organic gemstone, not a mineral

Likely iron meteorite

Iron meteorite, predominantly kamacite and taenite (Fe–Ni alloys)

Likely iron meteorite (stony-iron or weathered iron-rich meteorite)

Provisional identification: meteoritic Fe–Ni alloy, mainly kamacite/taenite; exact classification requires chemical and petrographic testing

Conglomeratic volcanic breccia

Lithic volcanic breccia, likely andesitic or basaltic

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Melo Melo Pearl (or Golden Chalcedony / Yellow Jasper Sphere)

Non-nacreous calcium carbonate pearl (or SiO2 - Silicon Dioxide)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Possible iron meteorite

Metallic meteorite, likely Fe–Ni alloy (kamacite/taenite)

Granite-like granitoid

Felsic intrusive igneous rock, chiefly quartz, feldspar, and minor mica (compositionally near granite or granodiorite)

Green Moss Agate

Silicon Dioxide with inclusions (SiO2)

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Black Jasper

Silicon Dioxide (SiO2) with impurities

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Amber (specifically Red or Cherry Amber)

Succinite (Resinite); Chemical formula: C10H16O