Muscovite Mica (in Quartz/Feldspar Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
Category
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
Muscovite Mica (in Quartz/Feldspar Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
Granite
Granite (a common name for a felsic intrusive igneous rock)
Granitic Gneiss
Gneiss (Polymetamorphic Granitic Gneiss)
Diorite
Diorite (Intermediate intrusive igneous rock)
Serpentine
Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)
Basalt
Basalt
Jade
There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.
Vesicular Basalt
Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 (Pyroxene) and (Ca,Na)Al(Al,Si)Si2O8 (Plagioclase Feldspar)
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
Amygdaloidal Basalt
Vesicular Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
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).
Basalt
Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 with (Ca,Na)(Al,Si)4O8
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Seraphinite
Clinochlore (a variety of the chlorite group)
Ruby in Fuchsite
Corundum (Al2O3) in Fuchsite (K(Al,Cr)3Si3O10(OH)2)
Soapstone / Steatite
Steatite (primarily Talc, Mg3Si4O10(OH)2)
Basalt
Basalt (Mafic volcanic rock)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Quartz-veined Basalt
Amygdaloidal or Porphyritic Basalt with Silicon Dioxide (SiO2) vein
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Moss Agate
SiO2 (Silicon Dioxide) with dendritic inclusions
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Marble
Metamorphosed Limestone (main mineral: Calcite, CaCO3)
Basalt
Basalt
Iron-Stained Quartzite
Recrystallized Meta-Quartzite (primarily SiO2)
Sandstone (Cross-bedded Drill Core)
Clastic Sedimentary Rock (primarily SiO2)
Basalt (Greenstone)
Amygdaloidal Basalt / Chloritized Basalt
Fuchsite
Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)
Schist (Graphite or Mica rich)
Crystalline Schist (often containing Muscovite, Biotite, or Graphite)
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
Basalt
Mafic volcanic rock, primarily composed of Plagioclase, Pyroxene, and Olivine
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
Basalt with Scoria/Vesicular Texture
Extrusive Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Banded Gneiss
Gneiss (Metamorphic Rock)
African Turquoise
Teal Jasper (Macro-crystalline Quartz/Sio2 + Inclusions of Copper, Iron, and Manganese)
Diorite
Diorite (Intermediate intrusive igneous rock)
Diorite (with Iron Staining)
Phaneritic Intermediate Igneous Rock
Basalt
Basalt (dominated by plagioclase feldspar and pyroxene minerals)
Basalt with Desert Varnish
Mafic Volcanic Rock (Fe/Mg rich Silicate)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz - SiO2)
Basalt
Extrusive mafic igneous rock
Garnet Schist
Almandine-Muscovite Schist