Mineral Like Byproduct

Sandstone (likely Quartzose Sandstone)

Arenite (SiO2 predominantly)

Jasper (River pebble)

Jasper / Silicon Dioxide (SiO2)

Yellow Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Quartz on Host Rock

Silicon Dioxide (SiO2)

Basalt with Plagioclase Phenocrysts

Porphyritic Basalt (primarily SiO2, MgO, FeO, and CaO)

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2

Mica Schist

Mica Schist (contains Muscovite/Biotite, Quartz)

Graphite-veined Quartzite

Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)

Quartz Pebble

Silicon Dioxide (SiO2)

Sandstone (Quartzose Sandstone)

Arenite

Hematite

Iron(III) oxide (Fe2O3)

Milky Quartz

Silicon Dioxide (SiO2)

Placer Gold Nugget

Native Gold (Au)

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Olivine in Basalt matrix

Peridotite (Mg, Fe)2SiO4

Clear Quartz Crystal (Rock Crystal)

Quartz (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

Silicon Dioxide (SiO2)

Clear Quartz (Carved Merkaba)

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 (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

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)

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Clear Quartz (Carved Dragon)

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Fluorite (likely Fluorite on Quartz/Matrix)

Calcium Fluoride (CaF2)

Precious Red Coral

Corallium rubrum (Calcium Carbonate, CaCO3)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Sandstone (Ferruginous)

Arenite (iron-rich)

Banded Agate

Cryptocrystalline Quartz (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Red Quartz (Hematoid Quartz)

Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Blue Chalcedony

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Carnelian Agate

Silicon Dioxide (SiO₂)