Granite and Igneous Rock Collection
Intrusive igneous rock / Granitoid
igneous
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Igneous Associated Mineral in the encyclopedia
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Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
mineral
Agate (Carnelian type)
Silicon Dioxide (SiO2)
mineral
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Biotite-rich schist (mica schist)
Mica schist, chiefly biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH,F)₂), with possible quartz and feldspar
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Lapis Lazuli
Rock composed mainly of lazurite, calcite, and pyrite
gemstone
Sodalite
Sodalite - Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Gneiss
Gneissic Metamorphic Rock
metamorphic
Weathered quartz-bearing metamorphic rock, likely gneiss or quartzite
Quartz-rich gneiss/quartzite with feldspar, mica, and iron-oxide alteration
metamorphic
Gneiss
Foliated Metamorphic Rock (Gneiss)
metamorphic
Weathered schist or gneiss cobble
Foliated silicate rock, likely mica schist or biotite gneiss
metamorphic
Red Jasper and Green Aventurine
Silicon dioxide (SiO2)
mineral
Granite
Intrusive Igneous Rock
igneous
Chalcedony (Common Opal or Agate)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Granite
Intrusive Igneous Rock
igneous
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
mineral
Granite
Felsic intrusive igneous rock
igneous
Green Opal
Hydrated Silica (SiO2·nH2O)
mineraloid
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Pyrite
Pyrite (FeS₂)
Mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Si,Al)4O10(F,OH)2)
mineral
Quartz–mica schist or mica-rich quartzite
Quartz with muscovite/biotite mica; likely a quartz-mica schist, possibly pegmatitic
metamorphic
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Likely weathered metamorphic rock (possibly schist or gneiss)
Indeterminate; probable mica-rich quartz–feldspar metamorphic rock
metamorphic
Green Jasper / Metavesuvianite-bearing rock
Silica-rich microcrystalline quartz aggregate / Green Jasper
igneous
Lapis Lazuli
Lapis Lazuli (Metamorphic rock primarily composed of Lazurite, Calcite, and Pyrite)
rock
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Native Gold Nugget
Gold (Au)
mineral
Quartz-veined Metamorphic Pebble
Silicate-rich metamorphic rock with quartz veins (SiO2)
metamorphic
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Polished blue sodalite
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, commonly with nepheline, calcite, or lazurite inclusions
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
mineral
Gold Nugget
Native Gold (Au)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral