Garnet
Almandine/Pyrope Garnet (X3Y2(SiO4)3)
mineral
Category
Mineral Like Byproduct (Technogenic)
Browse mineral like byproduct (technogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct (Technogenic) in the encyclopedia
View all →
Amygdaloidal Basalt
Extrusive mafic igneous rock with amygdules
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Septarian Nodule (Septarian Dragon Stone)
Septarian Concretion (CaCO3 + Al2Si2O5(OH)4)
sedimentary
Gneiss
Gneiss
metamorphic
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment
mineral
Bivalve Fossil (Clam)
Class Bivalvia, likely Mercenaria or similar genus
fossil
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)
gemstone
Schist
Crystalline Metamorphic Rock (Schistose)
metamorphic
Rose Quartz
Silicon dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
gemstone
Epidote in Quartz
Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)
metamorphic
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Muscovite Mica (likely on Quartz/Feldspar)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Sunstone
Aventurine Feldspar (Plagioclase Feldspar with inclusions)
mineral
Banded Serpentine
Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4
metamorphic
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Banded)
Cryptocrystalline Silica (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Sandstone (Ferruginous Concretion)
Ferruginous Sandstone Concretion / SiO2 with Fe2O3 cement
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
Mineral / Sedimentary
Greenstone / Greenschist
Chlorite schist / Epidiorite / Metabasalt
metamorphic
Greenstone
Metabasalt / Chlorite-Epidote Schist
metamorphic
Rose Quartz
Silicon dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
mineral
Granite Pegmatite
Pegmatite (Quartz, Feldspar, Mica)
igneous
Sandstone Cobble
Clastic Sedimentary (Sandstone)
sedimentary
Sandstone
Arenite (clastic sedimentary rock)
sedimentary
Specular Hematite
Iron(III) oxide (Fe2O3)
mineral
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Hornblende inclusions
mineral
Amygdaloidal Basalt with Epidote
Amygdaloidal Basalt (Ca2(Al,Fe)3(SiO4)3(OH))
igneous
Sandstone
Arenite (primary component SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily SiO2)
sedimentary
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Limonite (Iron Ore)
FeO(OH)·nH2O
mineral