Metamorphic Rock (Composed Of Multiple Minerals)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Bauxite

Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)

Veined Pebble (likely a Quartz-Veined Pebble)

Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Piddock bored rock (likely Mudstone or Shale)

Ichnofossil (Gastrochaenolites borings) in Fine-grained Sedimentary Rock

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Marble

Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)

Serpentinite

Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)

Limonite/Goethite on Shale

Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock

Gneiss (specifically a Granitic Gneiss specimen)

Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)

Mixed Mineral Collection

Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)

Bauxite

Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)

Red Sandstone

Arenite with Iron Oxide (Hematite) cement

Vesicular Basalt

Basalt (Mafic volcanic rock)

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Lapis Lazuli

Complex rock primarily containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Bauxite

AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)

Bumblebee Jasper

Carbonate-rich volcanic rock containing Sulfur and Arsenic (Realgar/Orpiment)

Giallo Ornamental Granite

Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)

Seashell Fragment

Calcium Carbonate (CaCO3) in the form of Aragonite or Calcite

Quartzite (River Cobble)

Quartzite (SiO2)

Bauxite

Bauxite (Al2O3·2H2O)

Dalmatian Jasper

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Dalmatian Stone

Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)

Dalmatian Stone

Dalmatian Jasper (Aplitic Rock)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Rainbow Moonstone

White Labradorite (formula: (Na,Ca)(Al,Si)4O8)

Kambaba Jasper (Crocodile Jasper)

Stromatolitic Rhyolite/Jasper (SiO2)

Marble (White)

Metamorphosed Limestone (mainly CaCO3)

Dyed Dalmatian Stone

Aplite (Alkali-feldspar granite) with Arfvedsonite

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group: Chrysotile, Lizardite, and Antigorite)

Granite

Granite (Phaneritic intrusive igneous rock)

Quartzite Cobble

Metamorphosed Quartz Sandstone (primarily SiO2)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Serpentinite (Serpentine Rock)

Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.

Ferruginous Sandstone

Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (SiO2 + Fe2O3)

Granite

Phaneritic Plutonic Rock (primarily Quartz, Feldspar, and Mica/Amphibole)

Sandstone

Arenite (primarily SiO2)

Bauxite

Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)