Mineral (Found In Igneous And Metamorphic Rocks)

Quartzite Pebble (with Iron Staining)

Quartzite (SiO2)

Hematite

Iron(III) oxide (Fe2O3)

Labradorite

(Ca, Na)(Al, Si)4O8 (Calcium Sodium Aluminum Silicate)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Quartzite River Cobble

Meta-quartzite (SiO2 with iron oxide staining)

Laterite

Laterite (no specific mineral formula as it's a rock type)

Quartzite (with Iron Staining)

Metamorphosed Quartz Sandstone (SiO2)

Epidote-bearing Granite (Unakite-like)

Epidotized Granite

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Granite

Phaneritic Felsic Igneous Rock

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)

Orthoclase (Potassium) Feldspar in Quartz

KAlSi3O8 (Potassium Aluminum Silicate)

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Moonstone

Orthoclase (Potassium aluminum silicate - KAlSi3O8)

Vesicular Basalt (Scoria)

Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2) matrix

Muscovite Schist with Quartz

KAl2(AlSi3O10)(OH)2 in Schistose matrix

Chalcedony

Cryptocrystalline Quartz (SiO2)

Gold and Diamond

Native Gold (Au) and Diamond (C)

Granite

Granite (Felsic Plutonic Rock)

Dendritic Agate

Silicon Dioxide (SiO2) with manganese/iron inclusions

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Granite Cobble / Rounded Granite River Rock

Granite

Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Celadonite in Amygdaloidal Basalt

K(Mg,Fe2+)(Fe3+,Al)Si4O10(OH)2 (Celadonite mineral) within a Basalt matrix

Greenstone / Serpentinite

Serpentinite (composed largely of Serpentine group minerals, Mg3Si2O5(OH)4)

Olivine (Peridotite/Dunite)

Olivine (Mg,Fe)2SiO4 within Peridotite

Jasper with Epidote (Unakite-related)

Epidotized Quartzite (composed of Quartz, Epidote, and Feldspar)

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Rough Emerald

Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)

Amethyst

Silicon dioxide (variant with ferric iron impurities), SiO2

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)

Aquamarine

Aquamarine (Beryl variety); Be3Al2Si6O18

Mica Schist

Mica Schist (primarily Muscovite and Quartz)

Red aventurine

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Diamond in Kimberlite

Kimberlite host rock with C (Carbon) inclusion

White Agate (Chalcedony)

Silicon Dioxide (SiO2)

Labradorite

(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)

Tiger's Eye

Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)

Chalcedony (Botryoidal or Tumbled)

Chalcedony (SiO₂)