Pegmatite (Granitic)
Granitic Pegmatite
igneous
Category
Mineral And Metamorphic Rock
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Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
mineral
Petrified Wood (Silicified Wood)
Silicified Wood / Silicon Dioxide (SiO2)
metamorphic
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Serpentine
Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4
metamorphic
Greenstone / Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)
metamorphic
Brown Garnet
Andradite or Almandine Garnet (general formula X3Y2(SiO4)3)
mineral
Agate
Chalcedony (SiO2)
sedimentary
Quartzite (Water-worn Cobble)
Quartzite (Composition: 90%+ SiO2)
metamorphic
Grey Slate
Foliated Metamorphic Rock (formed by low-grade regional metamorphism of shale or mudstone)
metamorphic
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Mineral
Petrified Wood
Silicified wood (primarily Silicon Dioxide - SiO2)
metamorphic
Basalt with Xenolith
Extrusive Igneous Rock containing Mantle Xenolith
igneous
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Serpentinized ultramafic rock (likely serpentinite)
Serpentinite; chiefly serpentine-group minerals Mg₃Si₂O₅(OH)₄, with magnetite, olivine, and pyroxene remnants
metamorphic
Hematite
Iron Oxide (Fe2O3)
mineral
Fossiliferous Sedimentary Rock
Sedimentary Rock with Invertebrate Fossil Imprint
fossil
Mica Schist
Mica Schist (primarily Muscovite and Biotite phyllosilicates)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Greisen
Greisen
Metamorphic
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
mineral
Gneiss
Gneiss
metamorphic
Brecciated Jasper
Silicon dioxide (SiO2) microcrystalline quartz breccia
sedimentary
Foliated slate or phyllite
Fine-grained metamorphosed mudstone; typically quartz, mica, chlorite, and clay-derived minerals
metamorphic
Manhattan Schist
Manhattan Schist (Aluminous Metasedimentary Rock)
metamorphic
Pegmatite (Granitic Pegmatite with Quartz and Feldspar)
Intrusive Igneous Rock (Granitic Pegmatite)
igneous
Brecciated Jasper or Chert
SiO2
Sedimentary/Metamorphic
Bornite
Bornite (Cu5FeS4)
mineral
Biotite-bearing granite or granitic gneiss
Quartz–feldspar–biotite aggregate; likely granite, possibly weathered gneiss
igneous
Granite or granitic gneiss pebble
Coarse-grained quartz–feldspar–mica rock; likely granite, possibly foliated gneiss
igneous
Coarse-grained mica-bearing metamorphic rock, likely schist
Mica schist, probably muscovite–biotite schist with quartz and feldspar
metamorphic
Green Aventurine and Clear Quartz
Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)
Mineral
Nephrite Jade (or Serpentine)
Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals
Mineral/Rock
Serpentine
Serpentine group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al)2O5(OH)4)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Serpentine
Serpentine-group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
mineral / metamorphic