Dearest Jewelry (Multigemstone)
Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)
Mineral
Category
Metamorphic Or Igneous (Context Dependent)
Browse metamorphic or igneous (context dependent) specimens identified by the Rock Identifier community.
Learn about Metamorphic Or Igneous (Context Dependent) in the encyclopedia
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Quartz Vein / Quartzite Specimens
Silicon Dioxide (SiO2)
mineral
Wishing Rock (Quartz Vein in Host Rock)
Silicon dioxide (SiO2) vein in various host rocks
Igneous/Sedimentary/Metamorphic with Mineral Vein
Quartz with Sulfide Inclusions
Silicon Dioxide (SiO2) with metallic mineral inclusions
mineral
Pyrite
Pyrite (FeS₂)
Mineral
Granite
Phaneritic intrusive igneous rock
igneous
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Efflorescence (on Clay Brick)
Crystalline salt deposits (typically Sodium Sulfate Na2SO4, Calcium Carbonate CaCO3, or Potassium Sulfate K2SO4)
Mineral precipitate (anthropogenic context)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Dumortierite Quartz
Dumortierite-bearing Quartz (SiO2 with Al7BO3(SiO4)3O3)
mineral
Yellow Aventurine
Quartz (Silicon Dioxide, SiO2) with inclusions
mineral
Quartz Druzy / Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Gneiss (specifically a water-worn pebble)
Gneiss
metamorphic
Quartz with Host Rock Matrix
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and Biotite)
igneous
Granodiorite
Granodiorite
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Ruby (Cabochon)
Corundum (Al2O3)
gemstone
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Granitoid (Granite/Gneiss)
Granitoid silicate rock, primarily quartz and feldspar
igneous/metamorphic
Basalt (with Brass Inlay)
Basalt (Mafic volcanic rock)
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Vesicular volcanic rock, likely pumice or scoria
Vesicular rhyolitic–andesitic volcanic rock; predominantly silicate glass with feldspar and possibly pyroxene
igneous
Chromium (Chrome)
Chromium (Cr)
mineral
Hypersthene
(Mg,Fe)SiO3 - Enstatite-Ferrosilite series
mineral
Leopard Skin Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Granite
Phaneritic Igneous Rock (Granite)
igneous
Blue Sapphire
Corundum (Al2O3)
gemstone
Granite (Micro-specimen)
Plutonic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Granite Pebble
Granitoid (Felsic Plutonic Rock)
igneous
Weathered sandstone or iron-rich sedimentary fragment
Quartz-rich sandstone, possibly ferruginous sandstone (SiO₂-dominant)
sedimentary
Rounded gray stone, likely quartz-rich granitic rock
Probable granite or granitic gneiss; mainly quartz, feldspar, and mica
igneous
Dinosaur Skull Fossil (Velociraptor Replica)
Velociraptor mongoliensis fossil specimen in sedimentary matrix
sedimentary
Granite
Phaneritic Igneous Rock (composed of Quartz, Feldspar, and Mica/Amphibole)
igneous
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
igneous
Diorite (River Cobble)
Intermediate plutonic igneous rock
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Blue Sapphire (in a faceted jewelry setting)
Corundum (Al2O3) with trace Iron and Titanium
mineral