Sandstone Concretion
Sedimentary concretion
Category
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
Sandstone Concretion
Sedimentary concretion
Citrine Quartz
Silicon Dioxide (SiO2)
Rose Quartz (or Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3 with Chromium traces)
Amethyst (Purple), Sulfur (Yellow), and Blue Apatite
SiO2 (Quartz), S (Native Sulfur), Ca5(PO4)3(F,Cl,OH) (Apatite Group)
Epithermal Gold Ore (in Quartz/Rhyolite matrix)
Auriferous Quartz (Au + SiO2)
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
Kaolinite (Kaolin)
Kaolinite (Al2Si2O5(OH)4)
Corundum (Sapphire/Ruby in Matrix)
Aluminium oxide (Al2O3)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
Super Seven (Melody Stone)
Quartz with inclusions (Amethyst, Cacoxenite, Goethite, Lepidocrosite, Rutile, Smoky Quartz, and Clear Quartz)
Specular Hematite
Hematite (Fe2O3)
Peacock Ore (Bornite/Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Plagioclase Feldspar (specifically Albite/Oligoclase)
(Na,Ca)(Si,Al)4O8
Bornite
Copper Iron Sulfide (Cu5FeS4)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
Blue Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)
Almandine Garnet
Fe3Al2(SiO4)3
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Jasper with Epidote Vein
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))
Unakite
Epidotized Granite
Basalt with Quartz Veins
Aphanitic Mafic Igneous Rock (Main body: SiO2, Fe, Mg rich)
Epidotite (Unakite-related Epidote)
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))