Specular Hematite (Specularite)
Hematite (Alpha-Fe2O3)
Category
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
Specular Hematite (Specularite)
Hematite (Alpha-Fe2O3)
Fossilized Bone (Petrified Bone)
Permineralized Vertebrate Remains
Proustite
Proustite (Ag3AsS3)
Jasper
Jasper (Cryptocrystalline Quartz; SiO2)
Malachite
Cu2CO3(OH)2 (Copper Hydroxide Carbonate)
Gneiss
Gneiss (Metamorphic Rock)
Hematite
Iron(III) oxide (Fe2O3)
Galena
Lead(II) sulfide (PbS)
Turquoise (likely stabilized or simulated Howlite)
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
Azurite and Malachite
Cu3(CO3)2(OH)2 (Azurite) / Cu2CO3(OH)2 (Malachite)
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
Rhodochrosite
Manganese carbonate (MnCO3)
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
Turquoise
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Malachite
Copper(II) carbonate hydroxide [Cu2CO3(OH)2]
Azurite and Malachite on Matrix
Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2CO3(OH)2
Hematite Nodule
Hematite (Alpha Fe2O3)
Copper Ore
Native Copper (Cu) often found with Chalcocite (Cu2S) or Bornite (Cu5FeS4)
Turquoise in Matrix
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Fluorite (Green)
Calcium Fluoride (CaF2)
Dinosaur Fossil (Skull)
Dinosauria fossilis (Petrified Hydroxyapatite / Calcium Carbonate)
Chrysocolla
Chrysocolla: Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Ferruginous Sandstone
Arenite with Iron Oxide matrix (Fe2O3)
Magnesite or Howlite (dyed or naturally patterned)
Magnesium carbonate (MgCO3) or Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
Rhodochrosite
Manganese Carbonate (MnCO3)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Turquoise in Matrix
Hydrous phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Limonite (Ironstone)
FeO(OH)qn H2O
Ferruginous Sandstone with Concretion
Sandstone (SiO2 dominated with Fe2O3 cement)
Galena
Lead(II) sulfide (PbS)
Red Jasper (Mookaite style)
Silicon Dioxide (SiO2) with iron oxide impurities
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
Selenite / Gypsum
Gypsum (CaSO4·2H2O)
Psilomelane (Black Hematite/Manganese Ore)
Barium Manganese Oxide (Formula: BaMn9O18(OH)4)