Marble
Recrystallized Calcite (CaCO3)
metamorphic
Category
Mineral Based Human Made Alloy
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
Learn about Mineral Based Human Made Alloy in the encyclopedia
View all →
Limonite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
sedimentary
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Mineral
Limonite (Ironstone Concretion)
Limonite (Hydrated iron(III) oxide-hydroxide, mixtures of FeO(OH)·nH2O)
sedimentary
Rock Crystal Quartz Bead
Silicon Dioxide (SiO2)
mineral
Chert (Quartz-rich)
Microcrystalline Silica (SiO2)
sedimentary
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
sedimentary
Chert (Chalcedony/Agate Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Chert (SiO2)
sedimentary
Limonite (Iron Ore)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
mineral
Chert / Flint
Chert (Silicon Dioxide, SiO2)
sedimentary
Chert (Nodule)
Chert (composition: SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2) with Iron Oxide impurities
sedimentary
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (containing Iron Oxide)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Jasper/Carnelian variety)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Slate
Foliated Metamorphic Slate
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Diamond
Carbon (C)
gemstone
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
igneous
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
igneous
Diamond
Diamond (pure Carbon, C)
mineral
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral
Dragon Vein Agate
Silicon Dioxide (SiO2)
mineral
Sandstone Pebble
Ferruginous Sandstone (SiO2 with Fe2O3)
sedimentary
Granite (Pegmatitic)
Phaneritic Felsic Igneous Rock
igneous
Sandstone Anvil / Nutting Stone
Quartzose Sandstone (Sedimentary Rock)
sedimentary
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Schist
Greenschist (Chlorite Schist)
metamorphic
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Black Obsidian
Amorphous volcanic glass (SiO2 + impurities)
igneous
Chert (Jasper-rich)
Silicon Dioxide (SiO2)
sedimentary