Sedimentary Rock (Possibly Composed Of Various Minerals)

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

Pyrite in Shale

Iron Disulfide (FeS2)

Gneiss

Gneiss

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Orange Calcite (often commercially sold as Honey Calcite or Aragonite)

Calcium Carbonate (CaCO3)

Red Jasper (with Quartz Veins)

Jasper (var. chert, SiO₂)

Graphite-veined Quartzite

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

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Sandstone (likely Calcareous or Micaceous)

Clastic sedimentary rock (primarily Quartz with Cementing Agents)

Granite

Granite (composed of Quartz, Feldspar, and Mica/Amphibole)

Petrified Wood

Silicified Wood (SiO2)

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Howlite

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Diorite

Diorite

Chert (Jasper variation)

Chert (Silicate mineral, SiO2)

Chakra Tumbled Stone Set

Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)

Dark Igneous Rock (Likely Basalt or Diabase)

Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.

Orange Calcite

Calcite (CaCO3)

Quartz Vein in Sedimentary Matrix

Silicon Dioxide (SiO2) with host rock

Lapis Lazuli

Lapis Lazuli (a rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2, with varying amounts of Calcite, Pyrite, and Sodalite).

Pearl

Calcium Carbonate (Aragonite or Calcite) and Conchiolin

Pyrite

Iron Sulfide (FeS2)

Agate (specifically a Yellow/Honey Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

River Stone / Siltstone

Siltstone (composed of lithified silt)

Rose Quartz

Silicon dioxide (SiO2)

Sandstone (Ferruginous)

Arenite (Iron-rich)

Sandstone

Arenite (SiO2 predominantly)

Chert (varietal Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Sandstone

Arenite (primarily SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Pink Granite

Phaneritic Felsic Intrusive Igneous Rock

Granite

Granite (Felsic Plutonic Rock)

Granite

Phaneritic plutonic rock (composed mainly of SiO2, Al2O3, K2O, and Na2O)

Muscovite Mica

Muscovite (KAl₂(AlSi₃O₁₀)(F,OH)₂))

Pink Granite

Phaneritic Plutonic Igneous Rock (high K-feldspar content)

Basalt with Granite Inclusions (Xenoliths)

Mafic igneous rock (Basalt) with Sialic minerals

Quartzite

Quartzite (SiO2)

Zebra Jasper

Silicon Dioxide (SiO2) with impurities; typically a form of Chalcedony/Microcrystalline Quartz

Porphyritic Basalt (with Pyrolusite or Iron-oxide staining)

Porphyritic Basalt (Mafic Extrusive)

Quartz (on matrix)

Quartz (Silicon Dioxide, SiO₂)

Quartz Pebble

Silicon Dioxide (SiO2)