Quartz Crystal Matrix
Silicon Dioxide (SiO2)
mineral
Category
Mineral_rock
Browse mineral_rock specimens identified by the Rock Identifier community.
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Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Rock (Quartz Arenite)
sedimentary
Granite
Granite (Intrusive Igneous Rock)
igneous
Diorite
Intermediate intrusive igneous rock
igneous
Diorite
Diorite (plutonic igneous rock)
igneous
Vuggy Quartz on Matrix
Crystalline Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
sedimentary
Not a rock, mineral, or geological specimen
N/A
Quartz-rich metamorphic rock, likely quartzite
Quartzite; predominantly microcrystalline quartz (SiO₂), possibly with mica or feldspar
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Sandstone and Conglomerate pebbles
Sedimentary clastic rock
sedimentary
Granite
Intrusive Igneous Rock
igneous
Gneiss (specifically a Banded Gneiss pebble)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Sandstone
Sandstone (clastic sedimentary rock)
Rock
Gneiss and Igneous Rock Collection
Foliated Metamorphic Rock (Gneiss) / Igneous Rocks
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Amygdaloidal Basalt with Quartz
Basalt with Secondary Mineral Infilling
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Extrusive igneous volcanic glass
igneous
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Coarse Sandstone Pebble
Clastic Sedimentary Rock (Sandstone)
sedimentary
Chert Nodule
Chert (Microcrystalline Silicon Dioxide, SiO2)
sedimentary
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Black Obsidian
Volcanic Glass (Amorphous SiO2 with trace impurities)
igneous
Green Aventurine
SiO2
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Geode (Unopened)
Silicon dioxide with various inclusions (SiO2)
sedimentary
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Basalt
Extrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Porphyritic Basalt or Porphyry
Porphyritic Igneous Rock
igneous
Gneiss
Gneissic Metamorphic Rock
metamorphic
Graphic Granite
Pegmatitic Granite
igneous