Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
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Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)
sedimentary
Quartz (beads)
SiO2 (Silicon Dioxide)
Mineral
Granodiorite
Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)
igneous
Basalt Porphyry
Porphyritic Basalt
igneous
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
mineral
Granite
Felsic Intrusive Igneous Rock (SiO2, Al2O3, K2O, Na2O)
igneous
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Granite
Granite (composed mainly of Quartz, Feldspar, and Mica)
igneous
Green Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Yellow Chalcedony (likely Carnelian or Yellow Agate)
Silicon Dioxide (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Blue Lace Agate
Chalcedony (SiO2) with trace minerals
mineral
Orbicular granite (likely rapakivi-type granite)
Granite; chiefly quartz, alkali feldspar, plagioclase, and biotite/hornblende
igneous
Jasper (specifically Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Milky Quartz Vein with Matrix
Silicon Dioxide (SiO2)
mineral
Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
mineral
Psilomelane (Manganese Ore)
Psilomelane (Ba,H2O)2Mn5O10
mineral
Greenstone
Greenschist / Greenstone (contains epidote, chlorite, and actinolite)
metamorphic
Blue Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
mineral
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper Breccia
Silicon Dioxide (SiO2) - Brecciated Microcrystalline Quartz
sedimentary
Greenstone (Greenschist)
Greenschist facies rock (containing chlorite, epidote, actinolite)
metamorphic
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite in Matrix (likely Quartz or Coal)
Iron Sulfide (FeS2)
mineral
Granite (with Beryl/Aquamarine)
Granite (Feldspar, Quartz, Mica, and Beryl Be3Al2Si6O18)
igneous
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Obsidian (black volcanic glass)
Obsidian; primarily amorphous SiO₂-rich rhyolitic glass
igneous
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
sedimentary
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
igneous
Granite
Phaneritic plutonic rock (SiO2 typically >69%)
igneous
Jasper (Banded Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Schist
Mica Schist
metamorphic
Petrified Wood
Silicified Wood (SiO2)
fossil
Ironstone Concretion / Limonite Node
Goethite and Limonite (FeO(OH) nH2O)
sedimentary