Iron Slag
Ferrous slag (primarily silicates and oxides of calcium, iron, and magnesium)
Anthropogenic (Man-made industrial byproduct)
Category
Mineral Like Byproduct (Technogenic)
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Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic
Likely metallic meteorite fragment
Undetermined; possibly an iron meteorite or stony-iron meteorite
meteorite
Carved pyrite frog or toad
Pyrite (iron disulfide, FeS₂), likely a carved massive aggregate
mineral
Greenstone
Metabasalt / Chlorite-actinolite-epidote schist
metamorphic
Pegmatite
Igneous Pegmatite
igneous
Orange glassy slag (industrial by-product)
Iron-rich silicate glass; composition varies, commonly Fe–Ca–Al silicate
mineral
Schist
Schist
metamorphic
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Banded Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Gneissic Granite
Granite Gneiss
metamorphic
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Schist
Mica Schist (Metamorphic rock)
metamorphic
Granite
Granite
igneous
Gneiss
Gneiss
metamorphic
Granite (Black/Dark Granite countertop background)
Intrusive felsic/intermediate igneous rock (e.g., granodiorite or tonalite)
igneous
Gneiss
Metamorphic Gneiss
metamorphic
Gneiss
Gneiss (Metamorphic high-grade)
metamorphic
Kimberlite
Ultramafic igneous rock
igneous
Gneiss
Gneiss
metamorphic
Greenstone
Metabasalt
metamorphic
Blue Quartz
Silicon Dioxide (SiO2)
mineral
Pegmatite
Coarse-grained igneous rock
igneous
Unopened Geode
Geode (containing various mineralization like Quartz SiO2)
sedimentary
Green Quartz
Silicon Dioxide (SiO2)
mineral
Green Quartz
Silicon Dioxide (SiO2)
mineral
Green Quartz
Silicon Dioxide (SiO2)
mineral
Greenstone
Metamorphic mafic rock
metamorphic
Fluorite
Calcium fluoride (CaF2)
mineral
Pegmatite
Igneous Pegmatite
igneous
Limonite / Iron Oxide Concretion
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide)
mineral
Petrified Wood
Silicified wood (SiO2)
sedimentary
Unakite
Altered Granite (Granitic rock composed of orthoclase feldspar, epidote, and quartz)
igneous
Greenstone
Metabasalt / Chlorite-actinolite schist
metamorphic
Granodiorite
Granodiorite
Igneous
Pegmatite with Tourmaline
Pegmatite / Silicate
igneous