Caribbean Calcite
Calcite (CaCO3) with Aragonite (CaCO3)
mineral
Category
Sedimentary And Igneous (Mixed)
Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.
Learn about Sedimentary And Igneous (Mixed) in the encyclopedia
View all →
Glacially transported granite and gneiss boulders
Granite (quartz–feldspar–mica); banded specimens likely gneiss
igneous and metamorphic
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
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
Fluorite
Calcium Fluoride (CaF2)
mineral
Copper Ore (Malachite and Limonite bearing)
Cuprite, Malachite, and Limonite mixture
mineral
Conglomerate (pebble-to-cobble gravel)
Polymictic conglomerate; clast-supported conglomerate in a sandy or silty matrix
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Quartz and Mixed Sedimentary Rocks
Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies
sedimentary
Sandstone (lithic wake/graywacke variety)
Arenite/Greywacke (SiO2 with lithic fragments)
sedimentary
Jasper / Agate
Silicon dioxide (SiO2)
sedimentary
Jasper (Green Jasper/Heliotropic Chert)
Silicon Dioxide (SiO₂)
sedimentary
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
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
K-feldspar Granite / Red Granite Fragment
Alkali feldspar granite (Plutonic igneous rock)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Puddingstone
Conglomerate
Sedimentary
Dragon Blood Jasper
Epidote with Red Jasper (Quartz-rich aggregate)
sedimentary
Unidentified weathered rock fragments
Likely mixed silicate rocks; specific identification requires testing
mineral
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Granite)
igneous
Mookaite Jasper
Silicified Radiolarite (SiO2 with iron impurities)
sedimentary
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Jasper and Quartz
Silicon Dioxide (SiO2)
sedimentary
Mixed Mineral Specimens
Mixed Silicates, Oxides, and Phosphates (SiO₂, Ca₅(PO₄)₃(F,Cl,OH), Na₈Al₆Si₆O₂₄Cl₂, etc.)
mineral
Mixed Mineral Collection (Quartz, Amethyst, Rose Quartz, Pyrite, etc.)
Mixed Silicates and Sulfides (SiO2, FeS2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Jasper containing Agate (Jaspagate)
Silicon Dioxide (SiO2)
sedimentary
Granite (Pink/Potassium Feldspar rich)
Granite (K-feldspar rich intrusive igneous rock)
igneous
Asphalt Concrete
Bituminous conglomerate
sedimentary
Granite / Feldspar gravel
Granite (felsic intrusive igneous rock)
igneous
Diorite
Diorite (plutonic igneous rock)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
igneous
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)
mineral
Granodiorite
Intermediate Phaneritic Plutonic Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral