Amazonite
K(AlSi3O8), Microcline (potassium feldspar)
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
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Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
sedimentary
Diorite
Diorite (intermediate intrusive igneous rock)
igneous
Petrified Wood
Silicified Wood (SiO2)
fossil
Dalmatian Jasper
Peralkaline Quartz-Feldspar Igneous Rock with Arfvedsonite
igneous
Septarian Nodule (Yellow Jasper variety)
Septarian Nodule (comprising Calcite, Aragonite, and Limestone/Bentonite)
sedimentary
Schist
Mica Schist (primarily Muscovite and Quartz)
metamorphic
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Blue Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Cobaltian Calcite
Cobalt-bearing Calcite (Ca,Co)CO3
mineral
Eudialyte
Na15Ca6(Fe2+,Mn2+)3Zr3(Si,Nb)Si25O73(O,OH,H2O)3(Cl,OH)2
mineral
Yellow Ochre / Limonite
FeO(OH)·nH2O (Hydrated Iron Oxide Mix)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Diorite
Intermediate plutonic igneous rock
igneous
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite and Tourmaline inclusions
igneous
Sandstone
Clastic Sedimentary Rock
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Sandstone (lithic wacke/conglomerate mix)
Clastic Sedimentary Rock (SiO2 with lithic fragments)
sedimentary
Yellow Aventurine
Silicon Dioxide (Quartz with inclusions of Mica or Pyrite), SiO2
metamorphic
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Yellow Ochre / Limonite
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Granite Pegmatite with Tourmaline and Muscovite
Pegmatite (Feldspar: KAlSi3O8, Quartz: SiO2, Schorl: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH))
igneous
Mica Schist
Metamorphic rock dominated by muscovite and/or biotite mica
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Dendritic Limestone
Calcite with Manganese Oxide (Manganese Dendrites)
sedimentary
Hag Stone (Holed Quartzite Pebble)
Quartzite (SiO2 based) with natural vug or erosion hole
sedimentary/metamorphic
Ironstone Concretion
Limonitic/Hematitic Concretion
sedimentary
Sandstone
Sandstone (principally SiO2)
sedimentary
Vesicular Basalt (Lava Rock)
Vesicular basalt
igneous
Greenschist with Quartz Veining
Greenschist (commonly containing Chlorite, Actinolite, and Epidote)
metamorphic
Green Quartzite
Quartzite (primarily SiO2 with chlorite inclusions)
metamorphic
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
metamorphic
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
igneous
Brown Chert
Cryptocrystalline Silica (SiO2)
sedimentary
Red Sandstone
Ferruginous Sandstone (SiO2 with Fe2O3)
sedimentary
Schist
Mica Schist
metamorphic
Pink Satin Spar (Satin Spar Selenite Dyed)
Gypsum (CaSO4·2H2O)
mineral