Metamorphic Rock (Primarily Composed Of Minerals)

Rounded greenish metamorphic rock, likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, or chrysotile)

Granite

Phaneritic intrusive igneous rock

Sandstone (likely Arkosic or Lithic)

Clastic Sedimentary Rock (composed mostly of SiO2)

Red Shale

Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)

Green Gneiss

Metamorphic Gneiss

Sandstone

Sedimentary Rock (Quartz arenite)

Vesicular Basalt (commonly mistaken for Slag)

Scoriaceous Basalt (composed primarily of Plagioclase Feldspar and Pyroxene)

Lapis Lazuli

(Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2 (Complex silicate rock)

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

Sandstone

Arenite (primarily Quartz-rich)

Granite Pebble

Phaneritic Igneous Rock

Sandstone

Arenite (primarily composed of SiO2 - Silicon Dioxide)

Sandstone (with carbonaceous plant fragments)

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone

Sedimentary Rock (Quartz Sandstone)

Quartz-rich metamorphic rock, likely quartzite

Quartzite, composed predominantly of quartz (SiO₂), possibly with minor feldspar, mica, or iron oxides

Granite

Granite (Phaneritic intrusive igneous rock)

Sandstone (Flagstone)

Arenite (composed primarily of SiO2)

Blue sodalite-bearing rock, possibly lapis lazuli

Sodalite (Na₈Al₆Si₆O₂₄Cl₂), likely in a feldspathoid-rich aggregate

Ironstone Concretion / Goethite Nodules

Ironstone (composed primarily of Goethite FeO(OH) and Limonite)

Marble

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

Quartzite with Epidote/Chlorite Inclusion

Metamorphic Quartzite (SiO2 with accessory silicate minerals)

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4)

Quartz-rich pegmatite fragment

Pegmatite composed chiefly of quartz (SiO₂), with probable feldspar and mica inclusions

Lapis lazuli

Lapis lazuli; primarily lazurite (Na₃Ca(Si₃Al₃)O₁₂S), with calcite and pyrite

Lapis Lazuli

Na8[Al6Si6O24]n(S,Cl,SO4,OH)2

Red Sandstone

Sandstone (principally Quartz with Iron Oxide coating)

Dalmatian Stone

Dalmatian Stone (a peralkaline igneous rock consisting of Feldspar, Quartz, and Arfvedsonite)

Fuchsite Gneiss or Schist

Muscovite (variety Fuchsite) within Metamorphic Host Rock

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Bumblebee Jasper

Carbonate-rich volcanic sediment with arsenic and sulfur inclusions

Unakite

Altered Granite (composed of orthoclase feldspar, epidote, and quartz)

Green Schist

Greenschist (Chlorite Schist)

Sandstone (specifically Arkose or Ferruginous Sandstone)

Sandstone (SiO2 predominant)

Banded Gneiss

Gneiss (Metamorphic rock)

Slate

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

Sandstone (Quartzose Pebble)

Arenite (composed primarily of SiO2)