Yellow Aventurine
Quartz (SiO2) with inclusions
mineral
Category
Mineral, Specifically A Detrital Grain
Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.
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Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Green Apophyllite
Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O
mineral
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Orbicular Jasper / Chalcedony (SiO2)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase/Microcline)
Potassium Feldspar (KAlSi3O8)
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 with various cementing agents)
sedimentary
Garnet (Pyrope or Almandine)
Silicate (X3Y2Si3O12)
mineral
Red Granite
Phaneritic Felsic Intrusive Igneous Rock (primarily K-feldspar, Quartz, and Biotite)
igneous
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Chert (Jasper-rich)
Silicon Dioxide (SiO2)
sedimentary
Fluorite (specifically Blue John or Banded Fluorite)
Calcium Fluoride (CaF2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Small unidentified mineral specimen
Indeterminate from image; possibly a quartz-family crystal or sulfide mineral
mineral
Fossiliferous Limestone (Crinoidal)
Calcite-bearing bioclastic packstone (CaCO3)
sedimentary
Green Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
sedimentary
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with various inclusions
mineral
Citrine Quartz (likely heat-treated)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral