Limonite
Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Limonite
Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)
Quartz (Smoky/Granular variety)
Silicon Dioxide (SiO2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Shattuckite (Blue Quartz/Jasper Matrix)
Shattuckite (Copper Silicate Hydroxide - Cu5(SiO3)4(OH)2)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
White Calcite
Calcium Carbonate (CaCO3)
Limonite Concretion
Limonite (Hydrated Iron Oxide) FeO(OH)·nH2O
Rugose Coral (Horn Coral)
Order Rugosa (extinct fossilized coral)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Vesicular Basalt (or Porphyritic Scoria)
Vesicular Basalt
Granite Gneiss
Felsic Gneiss
Conglomerate
Conglomerate (SiO2 matrix with various silicate clasts)
Conglomerate
Clastic sedimentary rock (Conglomerate)
Botryoidal Hematite
Hematite (Iron(III) oxide, Fe2O3)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
Gossan (with Limonite and Hematite)
Gossanous iron-oxide rock (Fe2O3 · nH2O)
Aventurine
Aventurine Quartz (SiO2)
Coarse Sandstone
Arenite (SiO2 based)
Magnetite
Iron(II,III) oxide (Fe3O4)
Greenstone
Metabasalt / Greenstone
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
Sandstone (Ferruginous/Banded)
Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)
Schist
Mica Schist
Quartz with Mafic Inclusions
Silicon Dioxide (SiO2) with host igneous matrix
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Diorite
Intermediate plutonic igneous rock
Rutilated Quartz (with Garnet pendant)
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Fossilized Shark Teeth
Carcharhiniformes or Lamniformes species (common mineral: Fluorapatite/Ca5(PO4)3F)
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host
Chert (specifically Green Chert/Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Fluorite Tower
Fluorite (Calcium Fluoride - CaF2)
Sandstone
Arenite (primary component SiO2)
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
Sandstone
Arenite (SiO2 principal)
Blue Apatite
Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]
Druzy Chalcedony/Quartz on Fluorite core
Silicon Dioxide (SiO2) on Calcium Fluoride (CaF2)