Graywacke
Graywacke Sandstone (C6H10O5)x - predominantly quartz and feldspar
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Graywacke
Graywacke Sandstone (C6H10O5)x - predominantly quartz and feldspar
Quartz
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
Dalmatian Jasper
Peralkaline Feldspar Rhyolite
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Arsenopyrite with Schist Matrix
Arsenopyrite (FeAsS)
Red Jasper
Silicon Dioxide (SiO2), microcrystalline quartz with iron oxide inclusions
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Feldspathic Gneiss (Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Milky Quartz
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Quartz
Silicon Dioxide (SiO2)
Quartz / Common Gravel
Silicon Dioxide (SiO2)
Grey Banded Agate
Silicon Dioxide (SiO2)
Vanadinite
Lead Chlorovanadate, Pb5(VO4)3Cl
Green Fluorite
Calcium Fluoride (CaF2)
Serpentine
Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Red Quartzite
Quartzite (SiO2)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Chrysocolla
Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Vesicular basalt (likely amygdaloidal basalt)
Basalt, a mafic volcanic rock composed mainly of plagioclase feldspar, clinopyroxene, and commonly olivine; vesicles are partly mineral-filled amygdules.
Quartzite with Epidote Vein
Metamorphosed Quartz Sandstone with Hydrothermal Vein
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.
Quartz Druze (Crystalline Quartz)
Silicon Dioxide (SiO2)
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
Andesite
Andesite (Intermediate Extrusive Igneous Rock)
Quartz
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pyrite Cube in Matrix
Iron Sulfide (FeS2)
Quartz
Silicon Dioxide (SiO2)
Purple Fluorite Octahedron
Fluorite (Calcium Fluoride, CaF2)