Sedimentary And Metamorphic Minerals

Red Sandstone

Arenite (Ferruginous Sandstone)

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Yellow Aventurine (Yellow Quartz)

Silicon Dioxide (SiO2) with inclusions of Muscovite or Mica

Red Sandstone

Arenite (ferruginous sandstone)

Petrified Wood

Silicified Wood (SiO2)

Chert (Arrowhead Fragment)

Microcrystalline Quartz (SiO2)

Chert (Jasper/Flint variant)

Silicon Dioxide (SiO2)

Chert (specifically Tan/Brown Chert)

Chert (SiO2)

Honey Calcite

Calcium Carbonate (CaCO3)

White Sapphire

Corundum (Al2O3)

Smoky Quartz

Quartz (SiO₂)

Celestine (Celestite)

Strontium sulfate (SrSO4)

Wonderstone (Banded Rhyolite)

Rhyolite (Silicon Dioxide with Iron Oxide impurities)

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Petrified Wood

Silicified Wood (SiO2)

Sapphire

Corundum (Al2O3)

Lapis Lazuli

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite and other associated minerals)

Botryoidal Black Chalcedony Geode (Black Grape Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Orange Calcite Sphere

Calcium Carbonate (CaCO3)

Quartzite

Quartzite (SiO2)

Dalmatian Jasper (Dalmatian Stone)

Dalmatian Stone (primarily Feldspar, Quartz, and Arfvedsonite/Tourmaline)

Yellow Quartzite or Yellow Jasper

Quartzite (primarily SiO2 with Iron oxide staining)

Quartzite River Rock

Quartzite (primarily SiO2)

Shale

Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)

Conglomerate

Conglomerate (clastic sedimentary rock)

Sandstone

Quartz Arenite (a type of sandstone composed of more than 90% quartz)

Moqui Marble (Concretion)

Iron Oxide Concretion (Hematite-cemented Sandstone)

Chert / Flint Conglomerate

Silicified Sedimentary Breccia (primarily SiO2)

Septarian Nodule (Septaria)

Septarian Nodule (Calcium Carbonate/Aragonite/Calcite Concretion)

Petrified Wood

Silicified wood (Quartz/Chalcedony - SiO2)

Petrified Wood

Silicified Wood (SiO2)

Epidote

Epidote (Ca2(Al,Fe)3(SiO4)3(OH))

Wonderstone (Liesegang Sandstone)

Silicified Sandstone with Liesegang Rings (SiO2 + FeO(OH))

Sulfur

Native Sulfur (S8)

Fluorite (left), Sodalite (middle), Dumortierite/Tumbled Quartzite (right)

Calcium Fluoride (CaF2), Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2), Aluminum Borosilicate (Al7(BO3)(SiO4)3O3)

Anthracite Coal

Anthracite

Gossan (Iron Hat)

Limonitic Gossan (predominantly FeO(OH)·nH2O)

Muscovite Mica

Muscovite / KAl2(AlSi3O10)(OH)2

Conglomerate

Conglomerate (clastic sedimentary rock)

Chert (Flint variety)

Silicon Dioxide (SiO2)

Jade (likely Jadeite)

Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)