Quartz pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Metamorphic Rock (For Both Nephrite And Jadeite)
Browse metamorphic rock (for both nephrite and jadeite) specimens identified by the Rock Identifier community.
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Polished agate/jasper pebble
Microcrystalline quartz (chalcedony), SiO₂, with likely iron-oxide and clay inclusions
mineral
Quartz / Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Greenstone with Epidote or Quartz Vein
Epidiorite or Metabasalt (composed largely of Chlorite, Epidote, and Amphibole)
metamorphic
Tumbled dark green stone, likely serpentine
Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄)
metamorphic
Likely tumbled pale-green mineral specimen
Indeterminate; possibly serpentine, calcite, or pale jade/nephrite
mineral
White Jade (Mutton Fat Jade / Nephrite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
Quartz chunk
Silicon dioxide (SiO2)
mineral
Ruby in Quartz with Tourmaline
Corundum (Al2O3) in Silicon Dioxide (SiO2) with Schorl
metamorphic
Graphite
Graphite (Chemical Formula: C)
Mineral (Native Element)
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
mineral
Tumbled green stone, likely serpentine
Serpentinite; principally serpentine-group minerals, Mg₃Si₂O₅(OH)₄
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartzite
Quartzite (SiO2)
metamorphic
Red Jade (Dyed Quartzite)
Silicon Dioxide (SiO2) - variety Quartzite
metamorphic
Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)
mineral
Chalcedony in Matrix
Silicon Dioxide (SiO2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Rough Quartz)
Silicon Dioxide (SiO2)
mineral
Hawk's Eye / Pietersite (Tiger's Eye variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Chert (Green Fossilized Algae or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Ruby in Kyanite
Corundum (Al2O3) in Kyanite (Al2SiO5)
metamorphic
Black Tourmaline
Schorl (Sodium iron aluminum borosilicate), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Granodiorite
Phaneritic Plutonic Intermediate-Felsic Rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Tumbled greenstone (likely serpentine)
Serpentinite; mainly serpentine-group minerals, commonly antigorite, lizardite, or chrysotile
metamorphic
Quartz Pebble in Sandstone matrix
Quartz Conglomerate (SiO2 matrix)
sedimentary
Quartz (Milky/Crystalline fragment)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Massive Quartz (Milky or Gray)
Silicon Dioxide (SiO2)
mineral
Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
mineral
Schorl (Black Tourmaline)
Sodium iron aluminum borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral