Metamorphic Rock (Specifically A Rock Composed Of Minerals)

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)

Yellow Jasper

Silicon Dioxide (SiO2 with iron oxide inclusions)

Banded Gneiss

Gneiss (Metamorphic Rock)

Pink Granite

Granite (Phaneritic Acidic Igneous Rock)

Schist (likely Mica Schist)

Mica Schist

Likely slate

Slate, a fine-grained metamorphic rock composed mainly of clay-derived mica minerals and quartz

Shale / Mudstone

Laminated Mudrock (Siliciclastic Sedimentary Rock)

Granite, likely weathered biotite granite

Phaneritic intrusive igneous rock composed chiefly of quartz, feldspar, and biotite amphibole

Quartzite Pebble

Metamorphic Rock (composed mainly of SiO2)

Sandstone (Ferruginous)

Clastic sedimentary rock (SiO2 with Fe2O3)

Polished tiger’s-eye (likely iron-rich quartzite)

Quartzite composed mainly of SiO₂, with fibrous crocidolite pseudomorphs oxidized to iron oxides

Dalmatian Stone

Aplite (often incorrectly called Dalmatian Jasper)

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Granite

Felsic intrusive igneous rock

Chert (specifically Flint or Jasper variant)

Chert (Siliceous rock composed of microcrystalline Quartz, SiO2)

Granite

Phaneritic Felsic Igneous Rock

Banded gneiss pebble

Gneiss, commonly quartz–feldspar–mica gneiss

Greenstone (likely serpentine-rich rock)

Serpentinite, a rock composed mainly of serpentine-group minerals; exact identification is uncertain from the image

Lapis Lazuli

Lapis Lazuli (Complex rock mainly composed of Lazurite, Calcite, and Pyrite)

Granite (Fine-grained)

Phaneritic Felsic Igneous Rock

Pink Granite

Phaneritic Felsic Igneous Rock

Pegmatitic Granite

Granite (composed of Quartz, Feldspar, and Mica)

Serpentinite

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

Granite

Granite (Felsic Plutonic Rock)

Likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (chrysotile, lizardite, antigorite), commonly with magnetite and pyroxene remnants

Weathered quartz-rich rock, likely quartzite or quartz vein fragment

Quartzite, composed predominantly of SiO₂; possible iron-oxide staining

Pink Granite

Phaneritic Igneous Rock (high K-Feldspar content)

Bauxite

Aluminum ore (mixture of gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH))

Conglomerate (Greenstone/Pebble Conglomerate)

Polymictic Conglomerate

Light-colored quartz-rich rock (possibly quartzite)

Quartzite, composed predominantly of quartz (SiO₂)

Unakite

Altered Granite (Granitic Metamorphic Rock)

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Serpentinite

Serpentinite (composed largely of serpentine minerals like antigorite, lizardite, or chrysotile)

Sodalite with Syenite (Yooperlite)

Sodalite in Syenite (Na8(Al6Si6O24)Cl2)

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.

Gneiss (specifically Granite Gneiss)

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss

Gneiss (High-grade metamorphic rock composed primarily of Quartz, Feldspar, and various Micas)

Serpentinite

Serpentinite (composed primarily of serpentine group minerals including antigorite, chrysotile, and lizardite)

Quartzite

Quartzite (composed primarily of SiO2)

Sandstone (Iron-stained)

Arenite (composed primarily of SiO2 with Fe2O3 staining)

Fuchsite

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Serpentinite

Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)