Sedimentary Or Igneous

Granitic Pegmatite

Granite Pegmatite (coarse-grained intrusive igneous rock)

Basalt (River Pebble)

Extrusive Magic Igneous Rock (Mainly Plagioclase and Pyroxene)

Pink Granite

Felsic intrusive igneous rock (composition: SiO2 and Al2O3)

Basalt

Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

Giallo Ornamental Granite

Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)

Obsidian

Volcanic Glass (Extrusive Igneous Rock, primarily SiO2)

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Basalt with Peridotite Inclusion

Mafic Volcanic Rock (Extrusive Igneous) with Ultramafic Xenolith

Granite

Phaneritic intrusive igneous rock (Quartz, Feldspar, Mica)

Basalt

Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

Basalt

Basalt (Aphanitic-fine grained mafic igneous rock)

Granitoid (Granite/Granodiorite)

Plutonic igneous rock (variable composition, primarily SiO2)

Granite

Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Jasper

Silicon dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or iron oxide inclusions

Sandstone (Weathered Cobble)

Clastic Sedimentary Rock (primarily SiO2)

Pink Tourmaline (Rubellite)

Rb:Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 (Elbaite variety)

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Chlorite (Small Flakes/Sand)

Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

River Quartz (Milky and Smoky mix)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Fluorite (Green)

Fluorite (Calcium Fluoride, CaF2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sodalite in Matrix (Sunset Sodalite)

Sodalite Na8(Al6Si6O24)Cl2

Dearest Jewelry (Multigemstone)

Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)

Rose Quartz

SiO2 (Silicon Dioxide)

Quartz (Sea Glass or River-worn Pebble style)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO₂)

Sodalite

Na8(Al6Si6O24)Cl2

Plagioclase Feldspar

NaAlSi3O8 – CaAlSi2O8 (Sodium-Calcium Aluminum Silicates)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Amethyst

Amethyst (SiO2 with Iron impurities)

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Carnelian (Orange Agate/Chalcedony)

Silicon Dioxide (SiO2) - variety of Chalcedony

Blue Lace Agate

Silicon Dioxide (SiO₂), a variety of Chalcedony

Epidote in Matrix

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

Smoky Quartz

Silicon Dioxide (SiO2)

Biotite (Mica)

K(Mg,Fe)3AlSi3O10(OH,F)2

Quartz (Smoky/Grey Variety)

Silicon Dioxide (SiO2)