Metamorphic Rock (Composed Of Multiple Minerals)

Granite Pebble

Granite

Bauxite

Bauxite (Al(OH)3, AlO(OH))

Granite (Weathered)

Phaneritic Felsic Igneous Rock

Quartzite

Quartzite (composed primarily of Silica, SiO2)

Fossilized Shark Tooth

Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)

Shale

Fissile mudrock (composed primarily of clay minerals and quartz)

Gabbro

Phaneritic Basic Igneous Rock

Serpentinite

Serpentinite (composed largely of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile: Mg3Si2O5(OH)4)

Serpentine

Serpentinite (composed mainly of Group Minerals Antigorite, Chrysotile, and Lizardite; Mg3Si2O5(OH)4)

Sandstone

Arenite (SiO2 secondary)

Botryoidal Chalcedony (Geode fragment)

Silicon Dioxide (SiO2)

Serpentine Jade (New Jade/Olive Jade)

Serpentinite (a rock composed primarily of serpentine minerals) / Mg3Si2O5(OH)4 for Antigorite and Lizardite

Sandstone (Ferruginous)

Arenite with Iron Oxide staining (Fe2O3)

Red Sandstone

Arenite (primarily composed of SiO2 with Fe2O3 cement)

Quartzite

Metamorphic rock predominantly composed of Quartz (SiO2)

Quartzite

Quartzite (composed primarily of SiO2)

Quartzite

Quartzite (composed mainly of SiO2)

Dalmatian Stone

Dalmatian Stone (a fine-grained igneous rock, often misidentified as Dalmatian Jasper)

Limestone

Sedimentary rock composed of Calcium Carbonate (CaCO3)

Schist

Mica Schist

Quartzite with Chlorite Bands

Meta-quartzite with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8

Eclogite

Eclogite (composed primarily of Omphacite and Garnet)

Serpentinite

Serpentinite (composed primarily of minerals in the serpentine group: (Mg,Fe)3Si2O5(OH)4)

Quartzite

Quartzite (composed primarily of SiO2)

River Siltstone Pebble

Siltstone (primarily composed of silica and clay minerals)

Greenstone

Protolith: Basaltic rock

Quartz (pebble)

Quartz (SiO₂)

Basalt

Basalt (Aphanitic Mafic Volcanic Rock)

Quartzite

Quartzite (composed primarily of SiO2)

Gneiss (Metamorphic Rock)

Gneiss

Quartz

Quartz (SiO₂)

Schist

Mica Schist (primarily composed of quartz, feldspar, and mica)

Marble

Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)

Zircon

Zircon (ZrSiO4)

Quartzite

Metamorphic rock predominantly composed of Quartz (SiO2)

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Red Sandstone

Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Banded Gneiss

Gneiss (Metamorphic Rock)

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)

Quartzite Pebble

Metamorphic rock predominantly composed of Quartz (SiO2)

Quartzite

Metamorphic rock primarily composed of Quartz (SiO2)