Sedimentary (Processed Mineral Product)

Garnet-Mica Schist

Garnetiferous Porphyroblastic Schist

Banded Iron Formation (BIF) / Ironstone Conglomerate

Ironstone (Hematite/Goethite rich sedimentary rock)

Ferruginous Quartz (Carnelian-tinted Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Sunstone and Green Aventurine

Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)

Botryoidal Black Chalcedony Geode (Black Grape Agate)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Fossilized Angel Wing Shell

Cyrtopleura costata

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Fossiliferous Rock (likely Dinosaur Fossil in Matrix)

Permineralized Vertebrate Fossil (Calcium Carbonate/Silica replaced bone material)

Petrified Wood

Silicified Wood (primarily Chalcedony/Quartz, SiO2)

Petrified Wood

Silicified Wood (SiO2)

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, formula: SiO2)

Sandstone (Ferruginous)

Sandstone (SiO2 with iron oxide inclusions)

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Ironstone Concretion / Hematite Nodules

Ferruginous Sedimentary Rock (primarily Hematite Fe2O3 and Goethite FeO(OH))

Amber

Succinite (Fossilized Resin)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

River Pebble (Greywacke or Chert mix)

Silicon Dioxide (SiO2) with varying mineral impurities

Red Jasper

Jasper (Silicon Dioxide based crypto-crystalline Quartz with Iron inclusions)

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Polished Sphere)

Calcium Carbonate (CaCO3)

Hematite

Iron(III) oxide (Fe2O3)

Fired Clay Brick (Anthropic Rock substitute)

Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)

Picture Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Calcite

Calcite (CaCO3)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite (Fe2O3) or Limonite (FeO(OH) nH2O)

Chert (often called Flint)

Chert (Microcrystalline Silicon Dioxide, SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite or Iron Hydroxide inclusions

Jasper

Jasper (Silicon Dioxide, SiO2)

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

Greenschist

Greenschist (Chlorite-Epidote-Actinolite Schist)

Quartz Druzy Geode

Silicon Dioxide (SiO2) - Crystalline Variety

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Orange Calcite

Calcium Carbonate (CaCO3)

Red Jasper

Silica (Silicon Dioxide, SiO2) with iron oxide inclusions

Banded Agate (with small Geode cavity)

Silicon Dioxide (SiO2) - Chalcedony variety

Chert (Flint) Nodule

Cryptocrystalline Quartz (SiO2)

Echinoid Fossil (Commonly called a Sea Urchin or Heart Urchin)

Phylum Echinodermata, Class Echinoidea

Zebra Jasper

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

Sandstone (Quartzose)

Arenite (composed primarily of SiO2)