Not A Rock (Animated Character)

Polished brecciated jasper (likely yellow-and-white jasper)

Jasper, an opaque microcrystalline variety of quartz (SiO₂); exact variety cannot be confirmed from the image

Likely slate or fine-grained metamorphic rock

Slate; predominantly microcrystalline quartz, mica, and clay minerals

Quartz-rich geode or druzy quartz

Quartz (SiO₂), possibly in a chalcedony/geode matrix

Iridescent bismuth crystal

Bismuth (Bi), artificially crystallized and likely oxidized/coated

Amethyst (Quartz)

Amethyst (Silicon Dioxide with Iron impurities), SiO2

Polished agate (likely plume or moss agate)

Chalcedony, microcrystalline quartz (SiO₂), with iron-oxide and possible chlorite inclusions

Polished carnelian/chalcedony

Cryptocrystalline quartz (SiO₂), likely banded agate with carnelian zones

Dalmatian Jasper

Microgranular quartz with amphibole/tourmaline inclusions

Lapis Lazuli

Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Polished serpentine (likely bowenite)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly Mg₃Si₂O₅(OH)₄

Green quartz pebble, possibly aventurine

Quartz (SiO₂), likely fuchsite-bearing aventurine quartz

Polished fossiliferous limestone

Fossiliferous micrite/bioclastic limestone, likely crinoidal or shell-rich limestone

Weathered iron-rich rock, possibly limonite-bearing quartzite or ironstone

Goethite–hematite/limonite with quartz; exact identification requires testing

Limestone

Calcium Carbonate (CaCO3)

Green aventurine quartz (tentative)

Quartz, SiO₂, with fuchsite mica or other green inclusions

Ferruginous Sandstone (Ironstone Nodules)

Ferruginous Sandstone with Limonite/Goethite coating (Fe2O3·H2O)

Quartz-bearing geode or vuggy quartz specimen

Quartz, silicon dioxide (SiO₂), possibly with chalcedony and iron-oxide staining

Obsidian

Obsidian (Amorphous volcanic glass)

Gray granite or granitic gneiss

Granite; typically quartz + feldspar + mica (approx. SiO₂-rich granitoid)

Weathered greenish metamorphic rock, possibly serpentinite

Serpentinite, dominated by serpentine-group minerals (antigorite, lizardite, or chrysotile)

Dalmation Stone (Dalmation Jasper)

Peralkaline Rock with Feldspar and Arfvedsonite

Tumbled green aventurine (probable)

Quartz, SiO₂, with green fuchsite mica inclusions

Black Onyx

Cryptocrystalline Quartz (SiO2) with impurities

Epidosite (Unakite-related)

Epidosite (predominantly Epidote, Ca2(Al2,Fe3+)(SiO4)3(OH))

White Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Polished serpentine (likely bowenite/antigorite)

Serpentine-group minerals, chiefly antigorite Mg₃Si₂O₅(OH)₄; possibly bowenite (massive antigorite)

Tahitian black pearl strand

Cultured pearl; aragonite (CaCO₃) nacre

Soapstone

Steatite (Hydrated magnesium silicate)

Agate

Silicon Dioxide (SiO2)

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Schist

Mica Schist

Limonite Concretion

Hydrated Iron Oxide-Hydroxide, FeO(OH)·nH2O

Amethyst (Quartz Variety)

Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)

Polished labradorite sphere

Labradorite, a calcium-rich plagioclase feldspar (approximately (Ca,Na)(Al,Si)₄O₈)

Iron-oxide-bearing rock fragment

Likely limonite/goethite with quartz or host-rock inclusions; exact identification requires testing

Gray-green flint/chert fragment

Microcrystalline quartz (SiO₂), likely chert or chalcedony-rich material

Limonite (Iron Ore)

Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)

Hematite (Iron Ore)

Iron(III) oxide (Fe2O3)

Quartz vein in foliated metamorphic rock

Likely quartz-bearing schist or gneiss; visible crystal is quartz (SiO₂)

Amazonite

K(AlSi3O8) - Lead-bearing Microcline (Tectosilicate)

Chalcedony (gray-white agate)

Microcrystalline quartz, SiO₂