Wishing Stone (Quartz-veined Metamorphic/Sedimentary Rock)
Quartz Vein in Greywacke/Slate (SiO2 in host rock)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Wishing Stone (Quartz-veined Metamorphic/Sedimentary Rock)
Quartz Vein in Greywacke/Slate (SiO2 in host rock)
Banded gneiss pebble
Gneiss, likely quartz–feldspar–mica gneiss
Gneiss
Metamorphic rock (Gneiss)
Garnet Amphibolite (or Garnet Gneiss)
Garnet amphibolite / Garnet-bearing metamorphic rock
Quartz with Matrix
Silicon Dioxide (SiO2)
Zebra Jasper
Banded microcrystalline quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Slate
Slate; fine-grained foliated metamorphic rock, commonly derived from shale or mudstone
Tumbled chalcedony and agate
Microcrystalline quartz (SiO₂), chiefly chalcedony with possible quartz/agate banding
Quartzite
Quartzite (SiO2)
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide and clay-mineral impurities
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Milky Quartz
Silicon Dioxide (SiO2)
Tiger's Eye
Silicon dioxide with crocidolite fibers (SiO2 with chrysotile amphibole inclusions)
Weathered quartz-rich metamorphic rock, likely quartzite
Quartzite; predominantly quartz (SiO₂), with minor iron-oxide staining and possible mica/clay minerals
Garnet-bearing Schist
Almandine Garnet [Fe3Al2(SiO4)3] in Micaceous Schist
Garnet Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
Quartz-rich rock, likely quartzite
Quartzite; predominantly crystalline SiO₂, possibly with minor feldspar or mica
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartzite with inclusions
Metamorphosed Quartz-rich Rock (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)