Mica Schist
Mica Schist (primarily Muscovite and Biotite composition)
Category
Browse mineral like byproduct specimens identified by the Rock Identifier community.
Mica Schist
Mica Schist (primarily Muscovite and Biotite composition)
Obsidian
Volcanic Glass (70-75% SiO2 with MgO and Fe3O4)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Basalt
Mafic Igneous Rock
Mica Schist
Mica Schist (Schistose metamorphic rock rich in Muscovite/Biotite)
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Dragonstone (Brecciated Basalt/Diabase with Epidote and Quartz)
Brecciated mafic igneous rock
Mookaite Jasper
Silicified Radiolarite (SiO2)
Amygdaloidal Basalt with Quartz/Zeolite Infill
Amygdaloidal Basalt (extrusive volcanic rock with SiO2 or CaAl2Si3O10·3H2O infill)
Amethyst (Rough)
Amethyst (SiO2 with Iron impurities)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Rose Quartz
Silicon dioxide (SiO2) with traces of titanium, iron, or manganese
Milky Quartz
Silicon Dioxide (SiO2)
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
Lepidolite
Lepidolite - K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Limonite
Limonite (Hydrated iron(III) oxide-hydroxide) FeO(OH)·nH2O
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Blue Calcite
Calcium Carbonate (CaCO3)
Yellow Aventurine
Quartz (SiO2) with iron-bearing inclusions
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Malachite
Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Rose Quartz
SiO2 (Silicon Dioxide with trace inclusions)
Fossilized Coral
Rugosa / Scleractinia (Agatized or Calcitized Coral)
Petrified Wood
Silicified Wood (SiO2)
Desert Rose (Baryte or Gypsum)
Barium sulfate (BaSO4) or Calcium sulfate dihydrate (CaSO4·2H2O)
Sandstone
Quartz Arenite
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
Ruby in Kyanite
Corundum in Disthene (Al2SiO5 + Al2O3)
Blue Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
Banded Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz