Fluorite
Calcium Fluoride (CaF2)
Category
Browse mineral (synthetic) specimens identified by the Rock Identifier community.
Fluorite
Calcium Fluoride (CaF2)
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Epidote
Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))
Gneiss (specifically Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Amygdaloidal Basalt with Epidote/Chlorite
Basalt (containing (Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)))
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Banded Gneiss
Gneiss (pronounced 'nice')
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Not a rock, mineral, or geological specimen
Gneiss
Gneiss
Mica Group Minerals
There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).
Sandstone
Arenite (clastic sedimentary rock)
Sandstone with Ironstone Concretion
Arenite with Ferruginous Cement
Quartz Druze on Matrix
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Epidote
Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
Peacock Ore
Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)
Pyrite
Iron Sulfide (FeS2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and silicate minerals
Diorite (Salt and Pepper Rock)
Diorite
Gneiss
Gneiss
Concrete with Aggregate
Artificial Conglomerate (Cement and Aggregate)
Gneiss (Banded Gneiss)
Gneiss
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxides (FeO(OH)·nH2O)
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Granitic Gneiss
Gneiss (Metamorphic rock predominantly containing quartz, K-feldspar, and plagioclase)
Schist
Mica Schist
Limonite (Ironstone)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
Sandstone (Banded)
Arenite
Gneiss (High-grade Metamorphic Rock)
Gneiss
Granite
Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)
Gneiss
Gneiss (High-grade metamorphic rock)
Banded Gneiss
Gneiss (Metamorphic rock composed of feldspar, quartz, and mica)
Native Copper in Basalt
Cuprum (with Host Basalt)
Gneiss
High-grade Metamorphic Gneiss
Gneiss
Gneiss
Quartz (Druzy)
Silicon Dioxide (SiO2)
Fluorite with Quartz coating
Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)
Fluorite
Calcium fluoride, CaF2