Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Category
Man Made Object (Metalwork)
Browse man made object (metalwork) specimens identified by the Rock Identifier community.
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Basalt River Pebble
Aphanitic Mafic Igneous Rock
igneous
Quartz Geode Fragment with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt (Scoria)
Vesicular Basalt
igneous
Moqui Marble
Ironstone Concretion (Ferruginous sandstone)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Scoria
Vesicular Basalt / Scoria
igneous
Lepidodendron Fossil (Scale Tree)
Lepidodendron sp.
fossil
Milky Quartz Mineral
Quartz (Silicon Dioxide, SiO2)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Limestone with Calcite Veins
Calcium Carbonate (CaCO3)
sedimentary
Granite
Granite
Igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Onyx (Black Onyx)
Silicon Dioxide (SiO2) - Chalcedony variety
Mineral
Precious Red Coral
Corallium rubrum / Corallium japonicum
mineral (organic gemstone)
Black Onyx
Cryptocrystalline Quartz (SiO2) with carbon/iron impurities
mineral/sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Botryoidal quartz (likely chalcedony or druzy quartz)
Silicon dioxide, SiO₂; microcrystalline quartz (chalcedony) with possible drusy quartz coating
mineral
Sandstone
Arenite (Clastic Sedimentary Rock)
sedimentary
Vesicular Basalt (Lava Rock)
Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)
igneous
Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Milky Quartz with Hematite/Limonite staining
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Thunderegg (Agate or Quartz Geode)
Silica-filled rhyolitic nodule (SiO2)
sedimentary
Basalt River Pebble
Aphanitic Mafic Igneous Rock
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Felsic Rock)
igneous
Coral Fossil
Anthozoa (Scleractinia)
fossil
Limestone
Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)
sedimentary