Granite
Granite (Plutonic Igneous Rock)
igneous
Category
Mixed: Igneous And Sedimentary
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
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Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Caribbean Calcite
Calcite (CaCO3) with Aragonite (CaCO3)
mineral
Asphalt
Asphalt concrete
sedimentary
Unidentified weathered rock fragments
Likely mixed silicate rocks; specific identification requires testing
mineral
Mixed stream gravel and common rock specimens
Predominantly quartz-rich granitoid, quartzite, sandstone, shale/slate, and mafic volcanic fragments; exact species cannot be determined confidently from the image
igneous, sedimentary, metamorphic
Rounded river gravel (mixed alluvial pebbles)
Polymictic alluvial gravel; commonly composed of quartzite, granite, basalt, sandstone, and quartz
sedimentary
Quartz and Mixed Sedimentary Rocks
Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies
sedimentary
Copper Ore (Malachite and Limonite bearing)
Cuprite, Malachite, and Limonite mixture
mineral
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Granite
Felsic intrusive igneous rock
igneous
Glacially transported granite and gneiss boulders
Granite (quartz–feldspar–mica); banded specimens likely gneiss
igneous and metamorphic
Conglomerate (pebble-to-cobble gravel)
Polymictic conglomerate; clast-supported conglomerate in a sandy or silty matrix
sedimentary
Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.)
Mixed Silicates and Sulfides (SiO2, FeS2)
mineral
Jasper / Agate
Silicon dioxide (SiO2)
sedimentary
Jasper (Green Jasper/Heliotropic Chert)
Silicon Dioxide (SiO₂)
sedimentary
Sandstone (lithic wake/graywacke variety)
Arenite/Greywacke (SiO2 with lithic fragments)
sedimentary
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Granite)
igneous
Yellow Ochre (Limonite)
Limonite (FeO(OH)qnH2O)
sedimentary
Lapis Lazuli
Lapis Lazuli (Rock containing lazurite, calcite, and pyrite)
rock
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Mookaite Jasper
Silicified Radiolarite (SiO2 with iron impurities)
sedimentary
Pink Granite
Phaneritic intrusive igneous rock (Granite)
igneous
Pink Granite
Phaneritic intrusive igneous rock (Granite)
igneous
Pink Granite (Gneissic Granite)
Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)
igneous
Granodiorite
Granodiorite (containing Plagioclase, Quartz, K-Feldspar, and Hornblende or Biotite)
igneous
Pink Granite
Granite (rich in Potassium Feldspar/Orthoclase)
igneous
Mineral and Rock Collection (Assorted)
Mixed collection including Quartz (SiO2), Jasper (SiO2 with impurities), Rose Quartz, and Aventurine
mineral
Jasper and Quartz
Silicon Dioxide (SiO2)
sedimentary
K-feldspar Granite / Red Granite Fragment
Alkali feldspar granite (Plutonic igneous rock)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Dragon Blood Jasper
Epidote with Red Jasper (Quartz-rich aggregate)
sedimentary
Puddingstone
Conglomerate
Sedimentary
Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)
Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates
igneous, sedimentary, and metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Mixed Mineral Specimens
Mixed Silicates, Oxides, and Phosphates (SiO₂, Ca₅(PO₄)₃(F,Cl,OH), Na₈Al₆Si₆O₂₄Cl₂, etc.)
mineral
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)
mineral
River Pebble
Polished Quartzite or Mixed Lithology
sedimentary
Jasper containing Agate (Jaspagate)
Silicon Dioxide (SiO2)
sedimentary
Diorite
Diorite (plutonic igneous rock)
igneous
Asphalt Concrete
Bituminous conglomerate
sedimentary