Weathered sandstone or arkosic sandstone
Clastic sandstone, likely quartz–feldspar-rich (arkose)
sedimentary
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Igneous Associated Mineral in the encyclopedia
View all →
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz Vein in Schist
Quartz (SiO2) in Mica Schist
metamorphic
Polished/tumbled quartz-rich pegmatite
Quartz–feldspar pegmatite, with iron-oxide staining; chiefly SiO₂ and KAlSi₃O₈–NaAlSi₃O₈
igneous
Andesite Porphyry
Andesite (Intermediate Volcanic Rock)
igneous
Chinese Writing Stone
Porphyritic Basalt or Porphyritic Andesite
igneous
Banded Gneiss
Gneiss (SiO2 enriched metamorphic rock)
metamorphic
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Metamorphic
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Glaucophane-bearing Schist (Blueschist)
Blueschist (Glaucophane-Lawsonite Schist)
metamorphic
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions
mineral
Gold-bearing Quartz
Quartz (SiO2) with associated pyrite or native gold
mineral
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Synthetic/Consumer Product
Gneiss
Gneiss
metamorphic
Polished/tumbled jasper, likely ocean jasper or brecciated jasper
Jasper: microcrystalline quartz (SiO₂) with iron oxides and other silicate impurities
mineral
Lepidolite in Mica Schist
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
metamorphic
Serpentinite
Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Green Chert
Microcrystalline Quartz (SiO2)
sedimentary
Unakite
Unakite (Epidotized Granite)
metamorphic
Jasper
Chalcedony (cryptocrystalline quartz), SiO2
Sedimentary
Tumbled carnelian
Carnelian, orange-red variety of cryptocrystalline chalcedony (SiO₂)
gemstone
Slate
Slate (Metamorphic Rock)
metamorphic
Polished carnelian/chalcedony
Carnelian, a reddish-orange variety of microcrystalline quartz (SiO₂)
mineral
Tumbled Grey Agate
Silicon Dioxide (Chalcedony variety), SiO2
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Bloodstone
Heliotrope (Chalcedony)
mineral
Gneiss
Gneiss (pronounced 'nice')
Metamorphic Rock
Chalcedony
Chalcedony (SiO2)
mineral
Quartz (Milky / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
igneous
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Schist
Mica Schist
metamorphic