Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
Category
Browse mineral like byproduct specimens identified by the Rock Identifier community.
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
Gneiss
High-grade metamorphic rock (Gneiss)
Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
Schist
Metamorphic Rock (Schist)
Epidote
Calcium aluminum iron silicate hydroxide (Ca2(Al,Fe)3(SiO4)3(OH))
Blue Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Limonite Concretion
Hydrated Iron Oxide-Hydroxide, FeO(OH)·nH2O
Quartz with Iron Oxide Inclusions
Silicon dioxide with limonite/hematite (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
Limonite (Iron Ore/Sandstone mixture)
Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz / Calcite Vein Rock
Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)
Yellow Aventurine (Yellow Quartzite)
Silicon Dioxide (SiO2) with inclusions
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Extrusive)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Diorite
Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
Goethite (Iron Ore)
Goethite (FeO(OH))
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
Sandstone
Arenite (primarily SiO2)
Limonite (Iron Ore)
Hydrous ferric oxides (FeO(OH)·nH2O)
Sandstone
Arenite (specifically Quartz Arenite)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Quartz with Iron Oxide Inclusions
Silicon Dioxide (SiO2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Fossil Shark Tooth
Lamniformes (order) - likely Cretalamna or Carcharias species
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Garnet (Pyrope-Almandine series)
Garnet Group, (Mg,Fe)3Al2Si3O12
Lepidolite Polished Point
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Limonite and Goethite
Limonite (hydrated iron(III) oxide-hydroxide) and Goethite (α-FeO(OH))
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Rough Rose Quartz
Quartz (Silica - SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2