Green schist (probable chlorite–actinolite schist)
Chlorite–actinolite schist; commonly composed of chlorite, actinolite, epidote, albite, and quartz
metamorphic
Category
Metamorphic Rock (Specifically A Rock Composed Of Minerals)
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Sandstone
Sandstone (Sedimentary rock composed of silicate grains)
sedimentary
Serpentinite (Polished Egg)
Serpentinite (composed mainly of serpentine group minerals, Mg3Si2O5(OH)4)
metamorphic
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
metamorphic
Dragon Blood Jasper (Dragon Stone)
Epidote-Piemontite/Quartzite Rock
metamorphic
Greenstone / Serpentinite
Serpentinite (composed largely of Serpentine group minerals, Mg3Si2O5(OH)4)
metamorphic
Quartz-rich metamorphic rock, likely quartzite
Quartzite, composed predominantly of quartz (SiO₂), possibly with minor feldspar, mica, or iron oxides
metamorphic
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Graphic Granite (or Rapakivi-textured Granite)
Alkali feldspar granite
igneous
Basalt
Extrusive Igneous Rock
igneous
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Banded gneiss pebble
Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and mica or amphibole
metamorphic
Quartz-rich pegmatite fragment
Pegmatite composed chiefly of quartz (SiO₂), with probable feldspar and mica inclusions
igneous
Diorite
Intermediate plutonic igneous rock
igneous
Weathered gneiss
Banded gneiss, commonly composed of quartz, feldspar, and mica
metamorphic
Granite
Intrusive igneous rock
igneous
Gneiss
Gneiss (Metamorphic rock)
metamorphic
Granite
Intrusive Igneous Rock
igneous
Serpentine-rich rock (likely antigorite serpentinite)
Serpentinite, composed mainly of serpentine-group minerals such as antigorite, lizardite, or chrysotile
metamorphic
Slate
Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz
metamorphic
Sandstone
Sedimentary rock composed mainly of quartz sand
sedimentary
Granitic Pegmatite
Granite Pegmatite (coarse-grained intrusive igneous rock)
igneous
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Granite (Polished Countertop Surface)
Plutonic Igneous Rock (Felsic)
igneous
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Bauxite
Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)
sedimentary
Shale
Sedimentary rock composed of clay minerals and quartz
sedimentary
Red Sandstone
Clastic sedimentary rock (primarily Quartz with Hematite)
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, or Chrysotile)
metamorphic
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Quartz Vein in Metamorphic Rock
Quartz-veined Schist or Gneiss
metamorphic
Vesicular Basalt (or Scoria)
Extrusive Igneous Rock (Mafic)
igneous
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
mineral
Peridotite
Ultramafic igneous rock
igneous
Polished orbicular granite (likely larvikite or rapakivi-type granite)
Granite; primarily quartz, potassium feldspar, plagioclase, and biotite/hornblende
igneous
Himalayan Pink Salt
Halite (NaCl) with trace minerals
mineral
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
sedimentary
Granite
Intrusive Igneous Rock
igneous