Fluorite, Sodalite, and Rose Quartz collection
Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)
mineral
Category
Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite)
Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct (Often Mistaken For Igneous Rock Or Meteorite) in the encyclopedia
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Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Dendritic Agate (Tree Agate)
Chalcedony (Silicon Dioxide, SiO2) with Manganese or Iron Oxide inclusions
mineral
Tektite (Indochinite)
Tektite (High-silica impact glass)
igneous
Olivine (Peridotite/Dunite)
Olivine (Mg,Fe)2SiO4 within Peridotite
igneous
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
Dendritic Siltstone
Siltstone with Manganese Dendrites (MnO2)
sedimentary
Concretion
Septarian Concretion (Clay-Ironstone Nodules)
sedimentary
Iron Meteorite
Siderite (Iron-Nickel Alloy)
mineral
Ironstone Concretion
Siderite or Hematite Concretion
sedimentary
Vesicular Basalt with Epidote/Amygdaloidal Basalt
Amygdaloidal Basalt (Mg, Fe)2SiO4 + Ca2(Al, Fe)3(SiO4)3(OH)
igneous
Sandstone Concretion
Sandstone (Sedimentary Rock) with silica or calcite cement
sedimentary
Tektite
Natural impact glass
meteorite
Silver Nuggets (Natural or Cast)
Native Silver (Ag)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone Concretion
Clastic Sedimentary Concretion (SiO2 with Iron Oxide)
sedimentary
Pink and Green Tourmaline (Tumbled)
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Banded Sedimentary Rock (Siltstone/Mudstone with concretion)
Siltstone with Ferruginous Banding
sedimentary
Olivine in Basalt (Peridotite Xenolith)
Forsterite-rich Olivine (Mg2SiO4) in Aphanitic Basalt
igneous
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Dendritic Opal
Opalized Chalcedony with Manganese Inclusions (SiO2 · nH2O)
mineral
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Sandstone (with manganese staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)
Mineral (variety of Quartz)
Chalcopyrite in Quartz (Gold Ore Matrix)
CuFeS2 (Chalcopyrite) with SiO2 (Quartz)
mineral
Olivine (Peridot when gem-quality)
Magnesium Iron Silicate, (Mg,Fe)2SiO4
Mineral
Olivine
(Mg, Fe)2SiO4
Mineral
Asphalt Conglomerate
Artificial Bituminous Conglomerate
sedimentary
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Weathered garnet-bearing gneiss
Quartz–feldspar–mica gneiss with almandine garnet, chiefly Fe₃Al₂(SiO₄)₃
metamorphic
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Ferruginous Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Likely weathered basalt or iron-rich volcanic rock
Basalt; primarily plagioclase feldspar, pyroxene, and possibly olivine with iron-oxide alteration
igneous
Iron Meteorite
Siderite (Iron-Nickel Alloy)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Weathered granite or granitic gneiss pebble
Granite; chiefly quartz, feldspar, and mica
igneous
Iron Meteorite
Siderite (Iron-Nickel Meteorite)
mineral
Ironstone (Limonite/Hematite concretion)
Ferruginous Siltstone / Goethite (FeO(OH))
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz with Mica inclusions (Gold-colored Mica)
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (Phlogopite/Muscovite) inclusions
Mineral