Sedimentary Or Igneous (Secondary Formation)

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Blue Calcite

Calcium Carbonate (CaCO3)

Basalt

Basalt (Fine-grained extrusive igneous rock)

Granite

Granite (phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)

Basalt

Basalt (Mafic volcanic rock)

Basalt

Basalt (comprising Plagioclase feldspar, Pyroxene, and Olivine)

Botryoidal Chalcedony with Calcite

Chalcedony (SiO2 with accessory minerals, likely CaCO3)

Included Quartz Beads (likely Phantom Quartz or Garden Quartz)

Quartz (SiO2) with various mineral inclusions

Dragon Blood Jasper

Epidote with Red Piedmontite (Chalcedony/Quartz variant)

Magnetite

Magnetite (Fe3O4)

Labradorite (likely Black Labradorite or Larvikite)

Labradorite (Na,Ca)(Al,Si)4O8. If a rock, it is typically anorthosite, gabbro, or norite, or a variety of syenite called Larvikite if it is specifically from Larvik, Norway.

Fossiliferous Limestone with Brachiopods

Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)

Chert (Jasper)

Silicon Dioxide (SiO2)

Specular Hematite (Iron Ore)

Iron(III) oxide (Fe2O3)

Carnelian Agate

Carnelian (Silicon Dioxide, SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Quartz

Silicon Dioxide (SiO₂)

Chert (Flint variety)

Chert (SiO2)

Glauconitic Sandstone

Glauconitic arenite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

Granite (Dioritic variant)

Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)

Chert (specifically Jasper/Brown Chert)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Pumice

Pumice (volcanic rock)

Chert (Jasper variation)

Chert (Silicate mineral, SiO2)

Chert (often called Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Yellow Chert (Jasper)

Microcrystalline Quartz (SiO2)

Ironstone Concretion

Siderite or Hematite-bonded Concretion

Chert

Chert (Microcrystalline Silica, SiO2)

Chert (with Limestone and Iron Oxide staining)

Cryptocrystalline Quartz (SiO2)

Chert Pebble (Jasperoid/Flint)

Silicon Dioxide (SiO2) - cryptocrystalline quartz

Chert (Yellow variety / Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz

Silicon Dioxide (SiO2)

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)

Sandstone

Arenite (SiO2 + various cementing minerals)

Sandstone (Ferruginous)

Sandstone (Clastic sedimentary rock, predominantly SiO2 with Fe2O3 cement)

African Turquoise (Jasper)

Polychrome African Jasper (often marketed as 'African Turquoise' due to its color, but it is not true turquoise)

Sandstone (with Iron Oxide staining)

Arenite (primarily SiO2 with Fe2O3 staining)

Sandstone (with Iron Staining)

Arenite (composed primarily of SiO2 with Fe2O3 staining)

Orange Calcite

Calcium Carbonate (CaCO3)

Green Opal

Hydrated Silica (SiO2·nH2O)

Shale or Argillite

Shale (sedimentary) / Argillite (metamorphic)

Synthetic Convention Badge (Plastic/PVC)

Polyvinyl Chloride (PVC) / Polycarbonate