Rock Identifier

Category

Mineral (Processed Alloy)

Browse mineral (processed alloy) specimens identified by the Rock Identifier community.

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Metallic sulfide mineral specimen, likely pyrite-bearing ore (Likely pyrite (FeS₂), possibly mixed with other sulfides or host rock) — mineral

Metallic sulfide mineral specimen, likely pyrite-bearing ore

Likely pyrite (FeS₂), possibly mixed with other sulfides or host rock

Gold Ore (in Quartz/Gossan matrix) (Native Gold (Au) in Limonite/Quartz matrix) — mineral

Gold Ore (in Quartz/Gossan matrix)

Native Gold (Au) in Limonite/Quartz matrix

Iron-rich vesicular rock, possibly slag or weathered basalt (Identification uncertain; likely ferruginous basalt/ironstone, with possible anthropogenic iron slag) — igneous

Iron-rich vesicular rock, possibly slag or weathered basalt

Identification uncertain; likely ferruginous basalt/ironstone, with possible anthropogenic iron slag

US Penny (Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy) — Man-made object (metal alloy)

US Penny

Cuprum (Copper: Cu) and Zincum (Zinc: Zn) Alloy

Man-made object (metal alloy)

Galena (Galena (lead sulfide, PbS), likely with associated sulfide minerals) — mineral

Galena

Galena (lead sulfide, PbS), likely with associated sulfide minerals

Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Iridescent bismuth crystal (Bismuth (Bi), commonly laboratory-grown and oxidized) — mineral

Iridescent bismuth crystal

Bismuth (Bi), commonly laboratory-grown and oxidized

Iron Meteorite (Siderite (Iron-Nickel Alloy), predominantly Kamacite and Taenite (Fe, Ni)) — mineral

Iron Meteorite

Siderite (Iron-Nickel Alloy), predominantly Kamacite and Taenite (Fe, Ni)

Galena (Galena (lead sulfide, PbS)) — mineral

Galena

Galena (lead sulfide, PbS)

Likely galena (Galena (lead sulfide, PbS)) — mineral

Likely galena

Galena (lead sulfide, PbS)

Galena (Galena (lead sulfide, PbS)) — mineral

Galena

Galena (lead sulfide, PbS)

Native Gold (Gold (Au)) — mineral

Native Gold

Gold (Au)

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

Lepidolite

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

Silver (Native Silver Mineral) (Ag (Native Silver), Alloyed 90% Ag / 10% Cu) — mineral

Silver (Native Silver Mineral)

Ag (Native Silver), Alloyed 90% Ag / 10% Cu

Red Jasper (beads) (SiO₂ (Silicon Dioxide)) — Mineral, variety of chalcedony (microcrystalline quartz)

Red Jasper (beads)

SiO₂ (Silicon Dioxide)

Mineral, variety of chalcedony (microcrystalline quartz)

Diamond (as set in a metal alloy ring) (Diamond (Pure Carbon, C)) — mineral

Diamond (as set in a metal alloy ring)

Diamond (Pure Carbon, C)

Galena-bearing sulfide fragment (Galena (PbS), possibly with quartz or carbonate gangue) — mineral

Galena-bearing sulfide fragment

Galena (PbS), possibly with quartz or carbonate gangue

Raw metallic sulfide specimen, likely galena (Galena (lead sulfide, PbS), possibly mixed with sphalerite or chalcopyrite) — mineral

Raw metallic sulfide specimen, likely galena

Galena (lead sulfide, PbS), possibly mixed with sphalerite or chalcopyrite

Likely metallic mineral specimen (Probably galena (lead sulfide, PbS), though visual identification is uncertain) — mineral

Likely metallic mineral specimen

Probably galena (lead sulfide, PbS), though visual identification is uncertain

Celestite (Celestine) (Strontium sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium sulfate (SrSO4)

Iron Meteorite (Iron Meteorite (primarily Kamacite and Taenite, Fe-Ni alloys)) — mineral

Iron Meteorite

Iron Meteorite (primarily Kamacite and Taenite, Fe-Ni alloys)

Ruby-set gold ring (Ruby (corundum), Al₂O₃ colored red by chromium; mounted in a gold alloy) — gemstone

Ruby-set gold ring

Ruby (corundum), Al₂O₃ colored red by chromium; mounted in a gold alloy

Galena-bearing rock (Galena (PbS), likely with quartz or host-rock minerals) — mineral

Galena-bearing rock

Galena (PbS), likely with quartz or host-rock minerals

Copper ore (likely cuprite-bearing copper mineralization) (Cuprite, Cu₂O, possibly mixed with native copper and iron oxides) — mineral

Copper ore (likely cuprite-bearing copper mineralization)

Cuprite, Cu₂O, possibly mixed with native copper and iron oxides

Likely galena-bearing ore specimen (Galena (PbS), possibly with quartz or calcite gangue) — mineral

Likely galena-bearing ore specimen

Galena (PbS), possibly with quartz or calcite gangue

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Lapis Lazuli (Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])) — Metamorphic Rock (primarily composed of minerals)

Lapis Lazuli

Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])

Metamorphic Rock (primarily composed of minerals)

Likely galena-bearing sulfide specimen (Galena (PbS), possibly with pyrite or other sulfides) — mineral

Likely galena-bearing sulfide specimen

Galena (PbS), possibly with pyrite or other sulfides

Emerald / Fluorite (Beryl (Be3Al2Si6O18) / Fluorite (CaF2)) — mineral

Emerald / Fluorite

Beryl (Be3Al2Si6O18) / Fluorite (CaF2)

Galena-rich sulfide specimen (Galena (lead sulfide, PbS), possibly with sphalerite and oxidized sulfides) — mineral

Galena-rich sulfide specimen

Galena (lead sulfide, PbS), possibly with sphalerite and oxidized sulfides

Synthetic Blue Aura Quartz (Silicon Dioxide (SiO2) with Metallic Infusion) — mineral (synthetic/man-made coating)

Synthetic Blue Aura Quartz

Silicon Dioxide (SiO2) with Metallic Infusion

mineral (synthetic/man-made coating)

Copper ore (cupriferous rock) (Native copper with copper oxides, likely cuprite (Cu₂O) and malachite/azurite alteration) — mineral

Copper ore (cupriferous rock)

Native copper with copper oxides, likely cuprite (Cu₂O) and malachite/azurite alteration

Galena (likely) (Galena, lead sulfide (PbS)) — mineral

Galena (likely)

Galena, lead sulfide (PbS)

Celestite (Celestine) (Strontium sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium sulfate (SrSO4)

Copper (Native Copper (Cu)) — mineral

Copper

Native Copper (Cu)

Bismuth (Bismuth (Bi)) — mineral

Bismuth

Bismuth (Bi)

Likely galena (lead sulfide) (Galena, PbS) — mineral

Likely galena (lead sulfide)

Galena, PbS

Probable galena (Galena (lead sulfide, PbS)) — mineral

Probable galena

Galena (lead sulfide, PbS)

Likely galena-bearing ore (Galena (PbS), possibly mixed with quartz or carbonate gangue) — mineral

Likely galena-bearing ore

Galena (PbS), possibly mixed with quartz or carbonate gangue

Metallic sulfide ore, likely galena-bearing rock (Galena (lead sulfide, PbS), possibly with pyrite or other sulfides) — mineral

Metallic sulfide ore, likely galena-bearing rock

Galena (lead sulfide, PbS), possibly with pyrite or other sulfides

Raw galena specimen (Galena (lead sulfide, PbS)) — mineral

Raw galena specimen

Galena (lead sulfide, PbS)