Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
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Black Obsidian
Obsidian (Volcanic Glass, ~70% SiO2)
igneous
Fluorite (specifically Rainbow Fluorite or Purple Fluorite)
Calcium Fluoride (CaF2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
sedimentary
Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Druzy Quartz on Host Rock
Silicon Dioxide (SiO2) with various iron-oxide inclusions
mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Tumbled Carnelian
Silicon Dioxide (Variety of Chalcedony), SiO2
gemstone
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
mineral
Schist/Phyllite
Metamorphic Schist (Chlorite Schist variety)
metamorphic
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Granodiorite
Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)
igneous
Green Schist (Greenschist)
Greenschist facies metamorphic rock
metamorphic
Lepidolite
K(Li,Al)3(Al,Si)4O10(F,OH)2 (Lithium-bearing phyllosilicate)
mineral
Red Jasper
Jasper (Silicon Dioxide) - SiO2
sedimentary/mineral
Kyanite (Purple variety)
Kyanite (Al₂SiO₅)
metamorphic
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
sedimentary
African Turquoise
African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)
sedimentary
Iron sulfide-rich ore, possibly pyrite-bearing gossan
Likely pyrite (FeS₂) with iron oxides/hydroxides and host rock; exact identification requires testing
mineral
Diorite
Diorite
igneous
Amazonite
Potassium Feldspar (Microcline) - K(AlSi3O8)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Crazy Lace Agate
Chalcedony (SiO2) with microcrystalline quartz
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Native Copper
Native Copper (Cu)
mineral
Rhodochrosite
Rhodochrosite (MnCO3)
mineral
Mica Schist
Mica Schist (Muscovite subclass)
metamorphic
Pink Granite / Potassium Feldspar with Quartz
Granite (composed mainly of Orthoclase KAlSi3O8 and Quartz SiO2)
igneous
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Diorite
Intermediate plutonic igneous rock
Igneous
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Granite
Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)
igneous
Diorite (Salt and Pepper Rock)
Phaneritic Plutonic Diorite; chemical composition roughly 52-63% silica (SiO2)
igneous
Diorite
Intermediate plutonic igneous rock
igneous
Orbicular Granite
Orbicular Granitoid
igneous
Pegmatitic quartz–feldspar rock with dark mica
Granitic pegmatite; quartz (SiO₂), feldspar, and biotite mica
igneous
Red Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide impurities)
sedimentary
Granite
Granite (Phaneritic igneous rock)
igneous
Orange Calcite
Calcite (CaCO3)
Mineral