Rock Identifier

Category

Man Made Object (Metal Alloy)

Browse man made object (metal alloy) specimens identified by the Rock Identifier community.

Learn about Man Made Object (Metal Alloy) in the encyclopedia

Opalite

Copper

Goldstone

Blue Goldstone

Zincite

Lherzolite

Bixbyite

Gondite

Strawberry Obsidian

Dunite

Rose Quartz (Silicon Dioxide (Quartz), SiO2) — mineral

Rose Quartz

Silicon Dioxide (Quartz), SiO2

Lepidolite (K(Li,Al)3(Si,Al)4O10(F,OH)2) — Mineral

Lepidolite

K(Li,Al)3(Si,Al)4O10(F,OH)2

Yellow calcite (tumbled honey or lemon calcite) (Calcite, calcium carbonate (CaCO₃), likely a yellow/orange calcite variety) — mineral

Yellow calcite (tumbled honey or lemon calcite)

Calcite, calcium carbonate (CaCO₃), likely a yellow/orange calcite variety

Faceted Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — gemstone

Faceted Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Peridot (Olivine ((Mg,Fe)2SiO4)) — mineral

Peridot

Olivine ((Mg,Fe)2SiO4)

Green Fluorite (Botryoidal/Massive) (Calcium Fluoride (CaF2)) — mineral

Green Fluorite (Botryoidal/Massive)

Calcium Fluoride (CaF2)

Tumbled red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Polished red jasper (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides.) — mineral

Polished red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides.

Tumbled pegmatitic granite (Coarse-grained granite/pegmatite, chiefly quartz, feldspar, and biotite or amphibole) — igneous

Tumbled pegmatitic granite

Coarse-grained granite/pegmatite, chiefly quartz, feldspar, and biotite or amphibole

Granite (Pegmatitic) (Phaneritic Felsic Igneous Rock) — igneous

Granite (Pegmatitic)

Phaneritic Felsic Igneous Rock

Diamond (or Diamond Simulant) (Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)) — gemstone

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Chert (specifically White Chert or Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Bronzite ((Mg,Fe)SiO3) — Mineral

Bronzite

(Mg,Fe)SiO3

Tumbled brown jasper (likely iron-rich chalcedony) (Jasper, opaque microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Tumbled brown jasper (likely iron-rich chalcedony)

Jasper, opaque microcrystalline quartz (SiO₂), commonly colored by iron oxides

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and mineral impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and mineral impurities

Dumortierite in Quartz (Dumortierite (Al6O3(BO3)(SiO4)3) with Quartz (SiO2)) — mineral

Dumortierite in Quartz

Dumortierite (Al6O3(BO3)(SiO4)3) with Quartz (SiO2)

Flint (Silicon dioxide (SiO2)) — sedimentary

Flint

Silicon dioxide (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Selenite (gypsum) (Gypsum, CaSO₄·2H₂O; variety: selenite) — mineral

Selenite (gypsum)

Gypsum, CaSO₄·2H₂O; variety: selenite

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Petrified Wood (Silicified Wood (primarily Quartz/Chalcedony, SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, SiO2)

Likely slate fragment (Slate; fine-grained foliated metamorphic rock, commonly quartz–mica–chlorite rich) — metamorphic

Likely slate fragment

Slate; fine-grained foliated metamorphic rock, commonly quartz–mica–chlorite rich

Chert (variations include Flint/Jasper) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (variations include Flint/Jasper)

Cryptocrystalline Quartz (SiO2)

Goldstone and pink quartz bead strands (Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible) — mineral

Goldstone and pink quartz bead strands

Goldstone is aventurescent copper-bearing glass; pink beads are likely rose quartz (SiO₂), though dyed or glass imitations are possible

Polished brown jasper (Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities) — metamorphic

Polished brown jasper

Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities

Red jasper (tumbled) (Jasper, microcrystalline quartz/chalcedony (SiO₂) colored mainly by iron oxides) — mineral

Red jasper (tumbled)

Jasper, microcrystalline quartz/chalcedony (SiO₂) colored mainly by iron oxides

Iron-rich meteorite candidate (Undetermined Fe–Ni meteorite, possibly an ordinary chondrite or iron meteorite) — meteorite

Iron-rich meteorite candidate

Undetermined Fe–Ni meteorite, possibly an ordinary chondrite or iron meteorite

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Banded Jasper (Silicon Dioxide (SiO2)) — Mineral/Sedimentary Rock (as a cryptocrystalline variety of quartz)

Banded Jasper

Silicon Dioxide (SiO2)

Mineral/Sedimentary Rock (as a cryptocrystalline variety of quartz)

Tumbled rose quartz (Quartz (silicon dioxide, SiO₂), pink variety) — mineral

Tumbled rose quartz

Quartz (silicon dioxide, SiO₂), pink variety

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Nephrite Jade (Ca2(Mg, Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)) — metamorphic

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Calcium magnesium iron silicate hydroxide)

Smoky quartz-bearing pegmatitic rock (Quartz, SiO₂, likely with feldspar and mica inclusions) — mineral

Smoky quartz-bearing pegmatitic rock

Quartz, SiO₂, likely with feldspar and mica inclusions

Yellow jasper (likely ocean jasper or brecciated jasper) (Jasper, microcrystalline quartz (SiO₂) with iron-oxide staining and dark mineral veins) — mineral

Yellow jasper (likely ocean jasper or brecciated jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide staining and dark mineral veins

Red Moss Agate (Jasper) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Moss Agate (Jasper)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Tumbled Gray Agate (Silicon Dioxide (SiO2)) — mineral

Tumbled Gray Agate

Silicon Dioxide (SiO2)