Rock Identifier

Category

Mineral (Man Enhanced)

Browse mineral (man enhanced) specimens identified by the Rock Identifier community.

Learn about Mineral (Man Enhanced) in the encyclopedia

Pyrolusite

Celsian

Dendritic Jasper

Banalsite

Paracelsian

Feldspar

Jade

Serpentinite

Landscape Opal

Dendritic Opal

Calc-schist

Galena

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Fluorite Carving (Fluorite (Calcium Fluoride, CaF2)) — mineral

Fluorite Carving

Fluorite (Calcium Fluoride, CaF2)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Sandstone (Sandstone (various mineral compositions)) — Sedimentary

Sandstone

Sandstone (various mineral compositions)

Howlite (tumbled stone) (Howlite, Ca₂B₅SiO₉(OH)₅) — mineral

Howlite (tumbled stone)

Howlite, Ca₂B₅SiO₉(OH)₅

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrous ferric oxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Rainbow Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Botryoidal quartz (likely chalcedony or druzy quartz) (Silicon dioxide, SiO₂; microcrystalline quartz (chalcedony) with possible drusy quartz coating) — mineral

Botryoidal quartz (likely chalcedony or druzy quartz)

Silicon dioxide, SiO₂; microcrystalline quartz (chalcedony) with possible drusy quartz coating

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Fluorite (translucent octahedral crystal) (Calcium fluoride (CaF2)) — mineral

Fluorite (translucent octahedral crystal)

Calcium fluoride (CaF2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Satin Spar (Selenite) (Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — mineral

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Serpentine (Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Rainbow Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Limonite (Iron Ore) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Calcite crystal fragment (Calcite (calcium carbonate, CaCO₃)) — mineral

Calcite crystal fragment

Calcite (calcium carbonate, CaCO₃)

Granite (Phaneritic intrusive felsic igneous rock) — igneous

Granite

Phaneritic intrusive felsic igneous rock

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — Mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Pegmatite (Quartz and Feldspar with Dark Minerals) (Igneous Pegmatite) — igneous

Pegmatite (Quartz and Feldspar with Dark Minerals)

Igneous Pegmatite

Peridotite (Dunite) (Olivine-rich Peridotite ((Mg,Fe)2SiO4)) — igneous

Peridotite (Dunite)

Olivine-rich Peridotite ((Mg,Fe)2SiO4)

Tumbled carnelian (probable) (Cryptocrystalline silica, mainly chalcedony (SiO₂), colored orange-red by iron oxides) — gemstone

Tumbled carnelian (probable)

Cryptocrystalline silica, mainly chalcedony (SiO₂), colored orange-red by iron oxides

Olivine in Basalt matrix (Peridotite (Mg, Fe)2SiO4) — igneous

Olivine in Basalt matrix

Peridotite (Mg, Fe)2SiO4

Limonite (Iron Ore) (Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Milky Quartz with Chlorite inclusion (Silicon Dioxide (SiO2) with Chlorite group inclusions) — mineral

Milky Quartz with Chlorite inclusion

Silicon Dioxide (SiO2) with Chlorite group inclusions

Tumbled quartz-rich stone (likely milky quartz/quartzite) (Quartz (SiO₂), possibly quartzite with minor iron-oxide staining) — metamorphic

Tumbled quartz-rich stone (likely milky quartz/quartzite)

Quartz (SiO₂), possibly quartzite with minor iron-oxide staining

Schist (Schist) — metamorphic

Schist

Schist

Milky quartz (rough crystal) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (rough crystal)

Quartz, silicon dioxide (SiO₂)

Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

Quartz with Pyrite (Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)) — mineral

Quartz with Pyrite

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Howlite (Howlite, Ca₂B₅SiO₉(OH)₅) — mineral

Howlite

Howlite, Ca₂B₅SiO₉(OH)₅

Quartz (Chert/Chalcedony Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony Variety)

Silicon Dioxide (SiO2)

Plagioclase Feldspar (specifically Albite/Oligoclase) ((Na,Ca)(Si,Al)4O8) — mineral

Plagioclase Feldspar (specifically Albite/Oligoclase)

(Na,Ca)(Si,Al)4O8

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz / Chalcedony (Silicon Dioxide (SiO2)) — mineral

Quartz / Chalcedony

Silicon Dioxide (SiO2)

Fluorite (Fluor-spar) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Fluor-spar)

Calcium Fluoride (CaF2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)