Mineraloid (Human Made Geological Specimen)

Amber

Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Limestone (Grey and White specimens)

Calcium Carbonate (CaCO3)

Quartz (specifically Milky/White Quartz)

Silicon Dioxide (SiO2)

Quartz (specifically Milky Quartz or Quartzite)

Silicon Dioxide (SiO2)

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Leopard Skin Jasper

Silicon Dioxide (SiO2) with impurities

Tiger Iron

Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)

Chert

Microcrystalline Quartz (SiO2)

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

Grey Granite

Phaneritic Felsic Intrusive Igneous Rock

Quartz (specifically Milky or Clear Chunk)

Silicon Dioxide (SiO2)

Honey Calcite

Calcium Carbonate (CaCO3)

Sandstone Concretion

Clastic sedimentary rock (primarily Quartz SiO2)

Basalt

Basalt (Aphanitic Mafic Volcanic)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Optical Calcite (Iceland Spar)

Calcium Carbonate (CaCO3)

Quartz (Vein Quartz)

Silicon Dioxide (SiO2)

Calcite

Calcium Carbonate (CaCO3)

Sandstone (Ferruginous)

Ferruginous Sandstone (SiO2 with Fe2O3)

Jasper and Quartzite mix

Silicon Dioxide (SiO2) with impurities

Bloodstone (also known as Heliotrope)

Silicon Dioxide (SiO2) - variety of Chalcedony

Graphic Granite

Graphic Granite (Granite Pegmatite)

Amber

Succinite (Formula: C10H16O)

Azurite and Malachite on Matrix

Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2CO3(OH)2

Dyed Magnesite (often sold as Red Turquoise or Howlite)

Magnesium Carbonate (MgCO3)

Apatite

Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))

Yellow Agate

Agate (Microcrystalline Silicon Dioxide, SiO2)

Conglomerate

Conglomerate Rock (Paraconglomerate)

Chert (and Chalcedony)

Silicon Dioxide (SiO2)

Fossiliferous Brachiopod in Shale

Brachiopoda (Phylum) preserved in Carbonaceous Shale

Garnet Schist

Almandine-Muscovite Schist

Aventurine

Aventurine Quartz (SiO2 with inclusions)

Amber

Succinite (Formula: C10H16O)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Aquamarine

Beryl (Be3Al2Si6O18 with trace Fe2+)

Amber

Succinite (a Fossilized Tree Resin); Chemical formula is approximately C10H16O

Ferruginous Quartz

Silicon Dioxide with Hematite/Limonite inclusions (SiO2 + Fe2O3)

Gold and Silver (Metal Components of an Antique Pocket Watch)

Native Gold (Au) and Native Silver (Ag)

Orange Calcite

Calcium Carbonate (CaCO3)

Sunstone

Aventurine Feldspar (Plagioclase Feldspar with inclusions)