Rock Identifier

Category

Metamorphic Rock (For Both Nephrite And Jadeite)

Browse metamorphic rock (for both nephrite and jadeite) specimens identified by the Rock Identifier community.

Learn about Metamorphic Rock (For Both Nephrite And Jadeite) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Green Jade

Jade

Nephrite

Eulysite

Jadeite

Hornfels

Metabasalt

Metarhyolite

Cordierite Hornfels

Cordierite Hornfels

Metagabbro

Milky Quartz with Iron Staining (Silicon Dioxide (SiO2) with Hematite/Limonite) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2) with Hematite/Limonite

Ruby in matrix (likely ruby-bearing corundum) (Corundum, aluminum oxide (Al₂O₃), chromium-bearing variety) — gemstone

Ruby in matrix (likely ruby-bearing corundum)

Corundum, aluminum oxide (Al₂O₃), chromium-bearing variety

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Quartz (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz

Quartz (SiO2 - Silicon Dioxide)

Quartz (Double-Terminated) (Silicon Dioxide (SiO2)) — mineral

Quartz (Double-Terminated)

Silicon Dioxide (SiO2)

Chalcedony in Matrix (Silicon Dioxide (SiO2)) — mineral

Chalcedony in Matrix

Silicon Dioxide (SiO2)

Green aventurine quartzite (likely) (Quartzite dominated by quartz (SiO₂), colored by fuchsite or chlorite inclusions) — metamorphic

Green aventurine quartzite (likely)

Quartzite dominated by quartz (SiO₂), colored by fuchsite or chlorite inclusions

Graphite (Graphite (Chemical Formula: C)) — Mineral (Native Element)

Graphite

Graphite (Chemical Formula: C)

Mineral (Native Element)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Likely tumbled pale-green mineral specimen (Indeterminate; possibly serpentine, calcite, or pale jade/nephrite) — mineral

Likely tumbled pale-green mineral specimen

Indeterminate; possibly serpentine, calcite, or pale jade/nephrite

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear Fragment)

Silicon Dioxide (SiO2)

Polished agate or jasper slice (Microcrystalline quartz (chalcedony), SiO₂, possibly iron-oxide-bearing jasper) — gemstone

Polished agate or jasper slice

Microcrystalline quartz (chalcedony), SiO₂, possibly iron-oxide-bearing jasper

Quartz (Milky or Smoky Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Smoky Quartz)

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl (Sodium iron aluminum borosilicate), NaFe3Al6(BO3)3Si6O18(OH)4) — mineral

Black Tourmaline

Schorl (Sodium iron aluminum borosilicate), NaFe3Al6(BO3)3Si6O18(OH)4

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Milky/Crystalline fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline fragment)

Silicon Dioxide (SiO2)

Quartz (Milky or Rough Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Rough Quartz)

Silicon Dioxide (SiO2)

Ruby in Kyanite (Corundum (Al2O3) in Kyanite (Al2SiO5)) — metamorphic

Ruby in Kyanite

Corundum (Al2O3) in Kyanite (Al2SiO5)

Mica-rich granite or pegmatite fragment (Biotite granite/pegmatite; quartz (SiO₂), feldspar, and biotite mica) — igneous

Mica-rich granite or pegmatite fragment

Biotite granite/pegmatite; quartz (SiO₂), feldspar, and biotite mica

Greenschist / Chloritaform Schist (Chlorite Schist (Group of Silicate Minerals)) — metamorphic

Greenschist / Chloritaform Schist

Chlorite Schist (Group of Silicate Minerals)

Quartz Pebble in Sandstone matrix (Quartz Conglomerate (SiO2 matrix)) — sedimentary

Quartz Pebble in Sandstone matrix

Quartz Conglomerate (SiO2 matrix)

Basalt and Quartz pebbles (Basalt (extrusive igneous rock) and Quartz (SiO2)) — igneous and mineral

Basalt and Quartz pebbles

Basalt (extrusive igneous rock) and Quartz (SiO2)

igneous and mineral

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

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

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Tumbled green aventurine (likely) (Quartz, SiO₂, with fuchsite or other green inclusions) — mineral

Tumbled green aventurine (likely)

Quartz, SiO₂, with fuchsite or other green inclusions

Yellow Jade (Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)) — metamorphic

Yellow Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Polished green aventurine (probable) (Quartz, SiO₂, with green fuchsite or chlorite inclusions) — mineral

Polished green aventurine (probable)

Quartz, SiO₂, with green fuchsite or chlorite inclusions

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Sunstone and Green Aventurine (Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)) — Mineral

Sunstone and Green Aventurine

Sunstone: (Ca,Na)[(Al,Si)2Si2O8] (Plagioclase Feldspar Group); Green Aventurine: SiO2 (Quartz)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz-rich pegmatite (likely feldspar and quartz) (Granitic pegmatite composed mainly of quartz (SiO₂) and feldspars) — igneous

Quartz-rich pegmatite (likely feldspar and quartz)

Granitic pegmatite composed mainly of quartz (SiO₂) and feldspars

Herkimer Diamond (Quartz (Silicon Dioxide, SiO2)) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Red gemstone ring, likely ruby or synthetic ruby (Corundum (Al₂O₃), chromium-colored; natural versus synthetic cannot be determined from the photo) — gemstone

Red gemstone ring, likely ruby or synthetic ruby

Corundum (Al₂O₃), chromium-colored; natural versus synthetic cannot be determined from the photo

Tumbled dark green stone, likely serpentine (Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄)) — metamorphic

Tumbled dark green stone, likely serpentine

Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄)

Pyrite (Iron Pyrite (FeS₂)) — Mineral

Pyrite

Iron Pyrite (FeS₂)

Herkimer Diamond (Quartz) (Silicon Dioxide (SiO2)) — mineral

Herkimer Diamond (Quartz)

Silicon Dioxide (SiO2)

Schorl (Black Tourmaline) in Matrix (Sodium Iron Aluminum Borosilicate Hydroxide (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)) — mineral

Schorl (Black Tourmaline) in Matrix

Sodium Iron Aluminum Borosilicate Hydroxide (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

Polished serpentine pebble (Serpentinite, chiefly serpentine-group minerals (antigorite/lizardite; approximate formula Mg3Si2O5(OH)4)) — metamorphic

Polished serpentine pebble

Serpentinite, chiefly serpentine-group minerals (antigorite/lizardite; approximate formula Mg3Si2O5(OH)4)

Massive Quartz (Milky or Gray) (Silicon Dioxide (SiO2)) — mineral

Massive Quartz (Milky or Gray)

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl) (Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH) — mineral

Black Tourmaline (Schorl)

Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH