Metamorphic Or Igneous With Mineral Inclusion

Blue Quartz

Quartz (Silicon Dioxide) with inclusions, SiO2

Native Gold (in the form of jewelry)

Gold (Au)

Green aventurine bead bracelet

Quartz (SiO₂), typically green aventurine containing fuchsite mica or other chromium-bearing inclusions

Lapis Lazuli

(Na,Ca)8(Al,Si)12O24(S,SO4)(Cl)2

Milky Quartz

Silicon Dioxide (SiO2)

Mahogany Obsidian Arrowhead

Obsidian (volcanic glass) with Hematite inclusions

Mica Schist

Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)

Milky Quartz

Silicon Dioxide (SiO2)

Basalt with Quartz Vein

Basalt (extrusive igneous rock with SiO2 vein inclusion)

Morganite (Pink Beryl)

Beryllium aluminum silicate Be3Al2(SiO3)6

Quartz pebble with iron staining

Silicon dioxide (SiO2) with iron oxide inclusions

Clear Quartz (or Rock Crystal)

Quartz (SiO₂)

Agate with Fossil/Inclusion

Silicon Dioxide (SiO2) with chalcedony and potential fossil inclusion

Weathered granite or granitic pegmatite

Granite, primarily quartz (SiO₂), feldspar, and minor mica/iron oxides

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Blue Sapphire (in a faceted jewelry setting)

Corundum (Al2O3) with trace Iron and Titanium

Green Quartz (Prasiolite/Adventurine)

Silicon Dioxide (SiO2) with inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Sapphire Rough (Corundum)

Corundum (Aluminum Oxide, Al2O3)

Quartzite with Mafic Inclusion

Metamorphic Quartzite / Mafic Host Rock

Milky quartz

Quartz (silicon dioxide, SiO₂)

Green Aventurine

Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)3Si3O10(OH)2)

Green aventurine (likely)

Quartz, SiO₂, with fuchsite or other green inclusions

Red Aventurine (Strawberry Quartz / Sunstone Quartz)

Silicon Dioxide with Hematite/Goethite inclusions (SiO2)

Green aventurine bead bracelet

Quartz (SiO₂), commonly green quartzite/aventurine colored by fuchsite mica or other inclusions

Polished black stone, likely obsidian

Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)

Black-veined pebble, likely basalt in a weathered host rock

Probable basaltic dike or vein in altered volcanic rock; exact identification requires testing

Milky quartz with possible feldspar

Quartz (SiO₂), possibly intergrown with feldspar

Quartz (Milky and Smoky variety)

Silicon Dioxide (SiO2)

Scoria (Lava Rock)

Scoria (Vesicular Basaltic Rock)

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Blue Quartz (Dumortierite Quartz / Celestite)

Silicon Dioxide (SiO2) with inclusions

Tumbled green aventurine (likely)

Quartz, SiO₂, with fuchsite mica inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Green Aventurine

Silicon dioxide (SiO2) with Fuchsite inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Polished orbicular granite (likely larvikite or orbicular diorite)

Quartz/feldspar-bearing granitoid with dark amphibole–biotite minerals; exact variety requires testing

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Blue Quartz (Dumortierite Quartz)

Silicon Dioxide (SiO2) with Dumortierite inclusions (Al7BO3(SiO4)3O3)

Sunstone

Aventurine Feldspar (Plagioclase or Oligoclase)

Blue Quartz

Silicon Dioxide (SiO2) with microscopic inclusions