Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Yellow Calcite
Calcium Carbonate (CaCO3)
Sodalite-rich Syenite (Yooperlite)
Sodalite-rich Syenite (Na8(Al6Si6O24)Cl2 within an igneous matrix)
Rhodonite
Rhodonite (MnSiO3)
Jasper (Zebra Jasper)
Silicon Dioxide (SiO2) with impurities
Granite
Granite
Nephrite Jade
Nephrite (a variety of the mineral actinolite within the amphibole group); Chemical Formula: Ca2(Mg,Fe)5Si8O22(OH)2
Granite (weathered/river-tumbled)
Granite (Plutonic Igneous Rock)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Granodiorite
Phaneritic Granodiorite
Diorite (Salt and Pepper Rock)
Diorite
Diorite
Diorite (intermediate intrusive igneous rock)
Orbicular Granite
Orbicular Granitoid
Tufa (Limestone)
Calcareous Tufa (CaCO3)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Diorite
Phaneritic intermediate plutonic rock
Chrome Diopside
Magnesium Calcium Silicate (MgCaSi2O6) containing Chromium impurities
Black Opal
Amorphous Hydrated Silica (SiO2·nH2O)
Flint (Chert)
Silicon Dioxide (SiO2)
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
Granitic Pegmatite
Pegmatite (composed primarily of Quartz, Feldspar, and Muscovite mica)
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
Hematite
Iron(III) oxide (Fe2O3)
Celestine (or Celestite)
Strontium sulfate (SrSO4)
Fluorite
Calcium Fluoride (CaF2)
Jasper (Iron Oxide Rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions
Muscovite Mica
Muscovite (KAl₂(AlSi₃O₁₀)(F,OH)₂))
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Magnetite
Iron(II,III) oxide (Fe3O4)
Diorite (Salt and Pepper Rock)
Diorite
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Native Sulfur
Sulfur (S)
Granite (Thin Section)
Granite (Felsic Plutonic Rock)
Greenstone (Epidote/Chlorite Schist)
Metabasalt (composed primarily of Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH) and Chlorite (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Granodiorite
Granodiorite (calc-alkaline phaneritic igneous rock)
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
Iolite (Cordierite)
Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions