Rock Identifier

Category

Mineral, Jewelry

Browse mineral, jewelry specimens identified by the Rock Identifier community.

Learn about Mineral, Jewelry in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Dolomite

Chalcedony (Common Opal or Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Common Opal or Agate)

Silicon Dioxide (SiO2)

Garnet (Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3) — Mineral

Garnet

Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3

Rounded quartz-rich pebble (Likely milky quartz or quartzite (SiO₂), identification uncertain from image) — igneous

Rounded quartz-rich pebble

Likely milky quartz or quartzite (SiO₂), identification uncertain from image

Diamond (or Cubic Zirconia simulant) (Carbon (C) / Zirconium Dioxide (ZrO2)) — gemstone

Diamond (or Cubic Zirconia simulant)

Carbon (C) / Zirconium Dioxide (ZrO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Carnelian / Agate (Silicon Dioxide (SiO2) - Chalcedony variety) — mineral

Carnelian / Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Fossil bone, possibly a large mammal long-bone fragment (Fossilized cortical bone; taxon indeterminate from the photograph) — fossil

Fossil bone, possibly a large mammal long-bone fragment

Fossilized cortical bone; taxon indeterminate from the photograph

Chrysocolla (Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O) — mineral

Chrysocolla

Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4 nH2O

Turquoise in Matrix (Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise in Matrix

Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Larimar (Blue Pectolite (NaCa2Si3O8(OH))) — mineral

Larimar

Blue Pectolite (NaCa2Si3O8(OH))

Native gold in quartz matrix (Native gold (Au), with quartz (SiO₂) and possibly sulfide minerals) — mineral

Native gold in quartz matrix

Native gold (Au), with quartz (SiO₂) and possibly sulfide minerals

Polished turquoise cabochon pendant (Turquoise, hydrated copper-aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or matrix-bearing material) — mineral

Polished turquoise cabochon pendant

Turquoise, hydrated copper-aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or matrix-bearing material

Diamond (Natural Carbon (C)) — mineral

Diamond

Natural Carbon (C)

Diamond (in jewelry setting) (Adamantine Carbon (C)) — mineral

Diamond (in jewelry setting)

Adamantine Carbon (C)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Uncertain polished mineral specimen (Indeterminate; possibly quartz or feldspar with iron-oxide staining) — mineral

Uncertain polished mineral specimen

Indeterminate; possibly quartz or feldspar with iron-oxide staining

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Garnet (Almandine/Pyrope Garnet (X3Y2(SiO4)3)) — mineral

Garnet

Almandine/Pyrope Garnet (X3Y2(SiO4)3)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Copper-bearing chrysocolla/azurite host rock (probable) (Chrysocolla, Cu₂H₂Si₂O₅(OH)₄·nH₂O, with possible azurite Cu₃(CO₃)₂(OH)₂ in iron-stained quartz/matrix) — mineral

Copper-bearing chrysocolla/azurite host rock (probable)

Chrysocolla, Cu₂H₂Si₂O₅(OH)₄·nH₂O, with possible azurite Cu₃(CO₃)₂(OH)₂ in iron-stained quartz/matrix

Tumbled Black Tourmaline (Schorl (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)) — mineral

Tumbled Black Tourmaline

Schorl (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Fluorite (specifically Blue John or Banded Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (specifically Blue John or Banded Fluorite)

Calcium Fluoride (CaF2)

Jasper and Quartz Pebble (Silicon dioxide (SiO2) microcrystalline quartz) — sedimentary

Jasper and Quartz Pebble

Silicon dioxide (SiO2) microcrystalline quartz

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Garnet

Almandine (Fe3Al2(SiO4)3)

Druzy quartz on matrix (Quartz (SiO₂), microcrystalline crystal coating) — mineral

Druzy quartz on matrix

Quartz (SiO₂), microcrystalline crystal coating

Amazonite (Microcline (KAlSi3O8) with lead impurities) — mineral

Amazonite

Microcline (KAlSi3O8) with lead impurities

Dendritic Agate (Silicon Dioxide (SiO2) with Manganese/Iron inclusions) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron inclusions

Chrysocolla-bearing copper ore (tentative) (Chrysocolla, a hydrated copper silicate; commonly intergrown with quartz and/or other copper minerals) — mineral

Chrysocolla-bearing copper ore (tentative)

Chrysocolla, a hydrated copper silicate; commonly intergrown with quartz and/or other copper minerals

Green Quartz (Prasiolite/Adventurine) (Silicon Dioxide with inclusions (SiO2)) — mineral

Green Quartz (Prasiolite/Adventurine)

Silicon Dioxide with inclusions (SiO2)

Malachite (Copper(II) carbonate hydroxide [Cu2CO3(OH)2]) — mineral

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

Peach Moonstone (Potassium Aluminum Silicate, KAlSi3O8) — mineral

Peach Moonstone

Potassium Aluminum Silicate, KAlSi3O8

Garnet (Almandine (Fe3Al2(SiO4)3)) — mineral

Garnet

Almandine (Fe3Al2(SiO4)3)

Purple Turquoise (Composite Mojave Turquoise) (CuAl6(PO4)4(OH)8·4H2O (Hydrated copper aluminum phosphate composite)) — mineral

Purple Turquoise (Composite Mojave Turquoise)

CuAl6(PO4)4(OH)8·4H2O (Hydrated copper aluminum phosphate composite)

Specular Hematite (Hematite (Fe2O3)) — mineral

Specular Hematite

Hematite (Fe2O3)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Jasper or Agate (Silicon dioxide (SiO2)) — Mineral

Jasper or Agate

Silicon dioxide (SiO2)

Malachite (Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)) — mineral

Malachite

Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)

Quartz (Druzy) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy)

Silicon Dioxide (SiO2)