Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)
Orbicular Quartz Diorite / Tonalite
Category
Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.
Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)
Orbicular Quartz Diorite / Tonalite
Granite (specifically Pink or Red Granite)
Phaneritic Felsic Igneous Rock (Granite)
Conglomerate
Conglomerate (clastic sedimentary rock)
Banded Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Quartz Druzy (on Geode Fragments)
Silicon Dioxide (SiO2)
Ocean Jasper
Silicon Dioxide (SiO2) with iron and other mineral inclusions
Smoky Quartz
Silicon Dioxide (SiO2)
Carnelian
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Larimar
Pectolite (NaCa2Si3O8(OH))
Gold Grain
Native Gold (Au)
Quartzite Cobble
Metamorphosed Quartz Sandstone (SiO2)
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Amazonite
Potassium Feldspar (KAlSi3O8), specifically Microcline
Moonstone
Orthoclase Feldspar (specifically showing adularescence)
Petrified Wood
Silicified Wood (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Ametrine
Ametrine (SiO2 - Silicon Dioxide with varied iron impurities)
Lake Superior Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony Geode Fragment (Botryoidal)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Clear Quartz Cluster
Silicon Dioxide (SiO2)
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
Dendritic Agate (specifically Orange/Tumbled)
Silicon Dioxide (SiO2) with Oxide Inclusions
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Tourmalinated Quartz
Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)
Epidosite with Quartz (Unakite-variant or Jasper)
Epidotized Metasomatite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Pink Granite
Granite (Alkali Feldspar Granite)
Banded Calcite (often sold as Caribbean Calcite or Pink Calcite)
Calcium Carbonate (CaCO3)
Ironstone Concretion (Coprolite-like)
Goethite/Hematite Siderite Spheroid (FeCO3 or FeO(OH))
Rose Quartz
Silicon Dioxide (SiO2)
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
Agate
Agate (Silicon Dioxide, SiO2)
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Green Aventurine
Quartz variety (SiO2) with fuchsite inclusions
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
Rose Quartz
SiO2 (Silicon Dioxide)
Chert (Nodule)
Chert (Silicon Dioxide, SiO2)