Leopardite
Quartz porphyry / Quartz monzonite with manganese oxide spots
igneous
Category
Mineral Based Composite
Browse mineral based composite specimens identified by the Rock Identifier community.
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Greenschist
Greenschist (Actinolite-Chlorite Schist)
metamorphic
Bumblebee Jasper
Fossiliferous Calcite containing Orpiment and Realgar
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Granite
Granite (Felsic Intrusive Igneous Rock)
igneous
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
igneous
Basalt River Pebble (with possible Pyrite/Mineralization)
Basalt (Mafic volcanic rock)
igneous
Rutilated Quartz
Quartz with Rutile inclusions (SiO2 with TiO2 inclusions)
mineral
Schist
Mica Schist
metamorphic
Granodiorite
Granodiorite (intermediate plutonic rock)
igneous
Man-made Metal Pin (Non-geological)
Antimony-Lead Alloy or Zinc/Brass Base with Electroplating
Metal Alloy / Manufactured Artifact
Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Mica Schist
Mica Schist (contains Muscovite/Biotite, Quartz)
metamorphic
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Citrine
Crystalline Quartz (SiO2) with iron impurities
mineral
Desert Rose (Gypsum Rose / Barite Rose)
Calcium Sulfate Dihydrate (CaSO4·2H2O) or Barium Sulfate (BaSO4) with Sand inclusions
mineral
Gneiss
Gneiss (High-Grade Metamorphic Rock)
metamorphic
Granite
Granite (Phaneritic Quartz Monzonite)
igneous
Granite River Pebble
Granite (Phaneritic igneous rock)
igneous
River Stones (Quartzite and Sandstone)
Quartzite / Sedimentary Rock (SiO2 dominant)
sedimentary
Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with various inclusions (often Chlorite, Hematite, or Iron)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Apophyllite cluster
Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O
mineral
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Muscovite
Muscovite, KAl2(AlSi3O10)(OH)2
mineral
Bloodstone (Heliotrope)
Cryptocrystalline Quartz (SiO2 with iron oxide inclusions)
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Moss Agate
Silicon Dioxide (SiO2) with Chlorite/Oxide inclusions
mineral
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Schist
Mica Schist
metamorphic
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Basalt (with possible quartz/calcite inclusion)
Extrusive mafic igneous rock
igneous
River Stone (Sandstone or Siltstone)
Sedimentary Rock (Clastic)
sedimentary
Greywacke (Sandstone)
Lithic wacke
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Graywacke)
Arenite / Graywacke (SiO2 with lithic fragments)
sedimentary
Jasper River Stone
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary