Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Category
Mineral, Specifically A Detrital Grain
Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Basalt with Quartz/Feldspar Inclusion
Basalt (containing Silicate minerals such as SiO2 and (Ca,Na)(Al,Si)4O8)
igneous
Iron-Stained Quartzite
Recrystallized Meta-Quartzite (primarily SiO2)
metamorphic
Granite
Granite
igneous
Dalmatian Stone
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Porphyry
Porphyritic Basalt/Andesite
igneous
Crushed Stone (Basalt/Gabbro)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Blue Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Oak-grain Laminate (Industrial/Decorative Furniture Finish)
Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)
not a rock (synthetic material)
Sandstone Cobble
Arenite (Secondary classification based on grain size)
sedimentary
Fire Opal (in matrix)
Hydrated Silica (SiO2·nH2O)
Mineraloid
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
mineral
Petrified Wood
Silicified Wood (primarily SiO2)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Granite (with Orthoclase and Quartz)
Phaneritic Felsic Igneous Rock (KAlSi3O8 + SiO2)
igneous
Red Coral (with Hematite and Black Pearl accents)
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Jadeite (Jade)
Jadeite (NaAlSi2O6)
metamorphic
Sunstone (Oregon Sunstone)
Labradorite (Feldspar variety) - (Ca, Na)(Al, Si)4O8
mineral
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Rough Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
man-made glass mineral simulant
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
igneous
Black Pearl (Tahitian-style Cultured Pearl)
Calcium Carbonate (Aragonite) with Conchiolin (CaCO3)
mineral
Amazonite
K(AlSi3O8) - Potassium Feldspar (Microcline variant)
mineral
Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sunstone with Black Tourmaline (Arfvedsonite)
Feldspar (Na,Ca)(Al,Si)4O8 with Schorl Na(Fe3+)3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rough Garnet in Matrix
Almandine Garnet (Fe3Al2Si3O12)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
mineral
Native Gold Nugget
Native Gold (Au)
mineral