Mineral Like Byproduct (Technogenic)

Rose Quartz with Schist Matrix

Silicon Dioxide (SiO2) with Mica-Schist

Lemon Quartz (Orizaba/Citrinated Quartz)

Silicon Dioxide (SiO2) with iron impurities/treatment

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartz (Milky/Yellowish)

Silicon Dioxide (SiO2)

Grey Chalcedony (Tumbled Moon)

Microcrystalline Quartz (SiO2)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Adventurine (Green)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Sandstone

Clastic Sedimentary Rock (primarily SiO2)

Fancy Jasper (Bloodstone variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO₂)

Obsidian

Obsidian (principally SiO2)

igneous

Gneiss (specifically Amphibolite Gneiss)

Gneiss

Ferruginous Quartzite (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Botryoidal Hematite (Iron Stone Conglomerate)

Hematite (Fe2O3) in sedimentary matrix

Pink Thulite (Zoisite)

Ca2Al3(SiO4)3(OH) - Manganese-bearing Zoisite

Blue Chalcedony

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Herkimer Diamond (Quartz Crystal)

Silicon Dioxide (SiO2)

Basalt

Basalt (Mafic Extrusive Igneous Rock)

igneous

Tree Agate

Silicon Dioxide (SiO2) with dendritic inclusions

Diamond

Diamond (pure native carbon, C)

Septarian Nodule (Yellow Calcite in Limestone)

Septarian Concretion (CaCO3 with Aragonite and Calcite)

Clear Quartz Crystal (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Tourmalinated Quartz

Quartz (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) inclusions

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Carved Merkaba)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Amethyst

Silicon Dioxide with iron impurities (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Clear Quartz (Carved Dragon)

Quartz (Silicon Dioxide, SiO2)

Corundum (Ruby Variety)

Corundum (Al2O3)

Rhodonite

Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)