Vuggy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Category
Mineral Based Alloy (Anthropogenic)
Browse mineral based alloy (anthropogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Based Alloy (Anthropogenic) in the encyclopedia
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Granite
Felsic intrusive igneous rock
igneous
K2 Jasper (K2 Granite)
Azurite-in-Granite
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Amygdaloidal Basalt
Basalt with secondary mineral infilling (SiO2/CO3)
igneous
Montana Moss Agate
Chalcedony (SiO2) with Manganese/Iron oxide inclusions
sedimentary
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
White Topaz
Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2
mineral
Peacock Ore
Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)
mineral
Schist
Mica Schist
metamorphic
Quartz-veined Sedimentary Rock
Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)
sedimentary
Jade (likely Jadeite)
Jadeite (a pyroxene mineral) or Nephrite (a variety of amphibole mineral)
Mineral
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)
igneous
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions
mineral
Quartzwacke / Impure Sandstone
Arenite with minor lithic fragments (Silicon Dioxide matrix)
sedimentary
Amazonite
Potassium feldspar (KAlSi3O8)
mineral
Diorite
Diorite
igneous
Aura Rose Quartz
SiO2 (Silicon Dioxide with Titanium/Gold coating)
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Heliotrope (Bloodstone)
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Blue Topaz
Aluminum Silicate Fluoride Hydroxide Al2SiO4(F,OH)2
mineral
Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt with Pyrite
Basalt (MgFe2+)(Si,Al)2O6 containing FeS2 inclusions
igneous
Pink Granite
Phaneritic Intrusive Igneous Rock (Granite)
igneous
Fossil Shark Tooth
Carcharadon sp. (likely Carcharodon carcharias or similar Lamniformes)
fossil
Granite
Intrusive igneous rock (Acidic)
igneous
River Pebble Gravel
Hydrothermally modified Clastic Sediment (mainly Quartzite and Chert)
sedimentary
Gabbro
Gabbro (Mafic Plutonic Rock)
igneous
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
igneous
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Dalmatian Jasper
Dalmatian Stone (Arfvedsonite/Albite Microquartz)
igneous
River Stones (Quartzite and Sandstone)
Quartzite / Sedimentary Rock (SiO2 dominant)
sedimentary
Labradorite/Larvikite
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Tree Agate
Chalcedony (SiO2) with Dendritic inclusions
mineral
Bloodstone
Heliotrope (a variety of Cryptocrystalline Quartz / Jasper, SiO2)
mineral
Pink Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
mineral
Apatite
Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))
mineral
Quartz Geode
Quartz (Silicon Dioxide, SiO2) Geode
sedimentary
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Sandstone (lithic wake/graywacke variety)
Arenite/Greywacke (SiO2 with lithic fragments)
sedimentary