Metamorphic Or Igneous With Mineral Inclusion

Biotite-bearing granite or gneiss

Felsic granitoid; chiefly quartz, feldspar, and biotite mica

Likely quartz crystal sphere

Quartz (silicon dioxide, SiO₂), possibly included or coated quartz

Blue quartz (likely dyed or synthetic-treated quartz beads)

Quartz, silicon dioxide (SiO₂)

Quartz-bearing conglomeratic rock with orange feldspar/calcite inclusion

Probably porphyritic granite or granitic pegmatite; exact identification requires a thin section or tests

Blue gemstone, likely iolite or blue sapphire

Iolite (cordierite, Mg₂Al₄Si₅O₁₈) or corundum (sapphire, Al₂O₃)

Unidentified pink-and-green mineral-bearing rock

Not reliably identifiable from the image; possible pink feldspar with green epidote or another green mineral

Quartz–feldspar pegmatite fragment

Granite-family pegmatite, chiefly quartz (SiO₂) and feldspar, with minor mica or sulfide inclusions

Orange Quartz / Peach Aventurine

Silicon Dioxide (SiO2)

Blue Quartz

Silicon dioxide (SiO2) with inclusions

Moss Agate

Chalcedony (Silicon Dioxide) with Chlorite or Iron/Manganese inclusions (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Sugilite

Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)

Tumbled quartz

Quartz (silicon dioxide, SiO₂)

Weathered granite or granitic gneiss fragment

Granite; predominantly quartz, feldspar, and mica (exact identification is uncertain from the photograph)

Vesicular Basalt

Vesicular Basalt

Milky Quartz

Silicon Dioxide (SiO2)

Imperial Jasper

Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions

Aventurine

Silicon Dioxide (SiO2) with inclusions

Basalt with Chert or Jasper Inclusion

Igneous basalt / sedimentary chert nodule

Zoisite with Ruby (Anyolite)

Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)

Dearest Ring (Gemstones)

Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)

Milky Quartz

Silicon Dioxide (SiO2)

Emerald / Fluorite

Beryl (Be3Al2Si6O18) / Fluorite (CaF2)

Orange chromium diopside (likely tumbled)

Diopside, CaMgSi₂O₆; orange color may reflect iron-rich composition or surface treatment/inclusion

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Dalmatian Stone

Dalmatian Stone (Felsic Igneous Rock)

Pyrite-bearing granite with a golden sulfide inclusion

Granite; likely pyrite (FeS₂), possibly chalcopyrite (CuFeS₂)

Sunstone / Peach Moonstone (Feldspar variety)

Potassium Aluminum Silicate (KAlSi3O8)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Corundum (Sapphire in Matrix)

Aluminum Oxide (Al2O3)

Quartz fragment (Pebble)

Silicon Dioxide (SiO2)

Likely polished tiger’s-eye with dark matrix

Quartz (SiO₂) with fibrous crocidolite-derived inclusions; possibly an iron-rich jasper or other dark host rock

Emerald in Matrix

Beryl (Be3Al2Si6O18)

Milky Quartz

Silicon Dioxide (SiO2)

Gabbro or Diorite with Felsic intrusion

Mafic to intermediate intrusive igneous rock with felsic vein/inclusion

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite/Magnetite inclusions), SiO2

Green Quartz (Prasiolite)

Silicon Dioxide (SiO2)

Weathered greenstone / serpentinite (probable)

Serpentinite, chiefly antigorite–lizardite Mg₃Si₂O₅(OH)₄; possibly altered mafic greenstone

Blue Quartz

Quartz (Silicon Dioxide) with blue inclusions (SiO2)