Amygdaloidal Basalt with Quartz/Calcite Inclusions
Amygdaloidal Basalt (SiO2 / CaCO3 inclusions)
igneous
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
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Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
mineral
Fluorite (Fluor-spar)
Calcium Fluoride (CaF2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) within Sedimentary or Igneous host
mineral
Green Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Granite / Quartz Vein Rock
Granitoid with Quartz (SiO2)
igneous
Blue sodalite bead strand
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with minor hackmanite or associated minerals
mineral
Orbicular Jasper
Silicon Dioxide (SiO2)
sedimentary
Sphalerite with Siderite and Pyrite
Zinc Sulfide (ZnS) with Iron Carbonate (FeCO3) and Iron Disulfide (FeS2)
mineral
Likely foliated metamorphic rock (quartz-mica schist or gneiss)
Quartz–feldspar–mica metamorphic rock; exact identification requires a fresh surface and tests
metamorphic
Garnet-bearing metamorphic rock, likely garnet schist or amphibolite
Almandine garnet (Fe₃Al₂Si₃O₁₂) in mica- or amphibole-rich matrix
metamorphic
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
mineral
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
mineral
Blue Kyanite in Quartz
Kyanite (Al2SiO5)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Red Jasper (Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Schist (Greenschist / Mica Schist)
Metamorphic rock rich in platy minerals (e.g., Chlorite/Mica schist)
metamorphic
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Volcanic glass
igneous
Black tourmaline (polished schorl)
Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
mineral
Sandstone
Arenite
sedimentary
Bull Quartz with Mica and Host Rock
Massive Quartz (SiO2) with Muscovite/Chlorite inclusions
igneous
Sandstone (with potentially high Feldspar/Arkose content)
Clastic sedimentary rock (SiO2 dominated)
sedimentary
Sulfur
Native Sulfur (S8)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Native Copper (Penny specimen)
Native Copper (Cu)
mineral
Pegmatite (Granitic)
Granitic Pegmatite
igneous
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Granite
Felsic intrusive igneous rock
igneous
Chalcopyrite in Quartz (Gold Ore Matrix)
CuFeS2 (Chalcopyrite) with SiO2 (Quartz)
mineral
River Pebble (Gneiss / Granitic Schist)
Metamorphic Rock (Quartz-Feldspar-Mica assembly)
metamorphic
Red Jasper
Microcrystalline quartz (SiO2)
sedimentary
Quartz (vein quartz)
SiO2 (Silicon Dioxide)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Polished smoky quartz crystal with inclusions
Quartz, silicon dioxide (SiO₂), likely smoky quartz with iron-oxide or other mineral inclusions
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with high Iron Oxide impurities
mineral
Quartz-rich pegmatite with iron-stained quartz
Quartz (SiO₂) in granitic pegmatite, likely with feldspar and iron-oxide staining
igneous
Greenstone
Metabasalt / Metamorphosed Igneous Rock
metamorphic
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral