Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Specifically A Detrital Grain
Browse mineral, specifically a detrital grain specimens identified by the Rock Identifier community.
Learn about Mineral, Specifically A Detrital Grain in the encyclopedia
View all →
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy or Crystalline)
Silicon Dioxide (SiO2)
mineral
Unidentified gray-brown stone
Likely fine-grained quartz–feldspar rock; exact identification is not possible from this close, blurred image
mineral
Agate
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Nuummite
Nuummite (ortho-amphibole rock)
metamorphic
Quartzite (specifically Pink or Red Quartzite)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Pebble / Sandstone / Siltstone
Sedimentary Rock (Quartz Sandstone / Siltstone)
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Clear Quartz Cluster
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Orbicular Jasper/Microcrystalline Quartz (SiO2)
sedimentary
Green Aventurine
Quartz variety (SiO2) with fuchsite inclusions
mineral
Kidney Stone (Urolith)
Calculus renalis (Biogenic mineral aggregate)
mineral
Yooperlite (Sodalite-bearing Syenite)
Sodalite-rich Syenite
igneous
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Bloodstone / Heliotrope
Silicon dioxide (SiO2) with inclusions
Mineral (variety of Chalcedony)
Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)
Orbicular Quartz Diorite / Tonalite
igneous
Pink Granite
Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)
igneous
Amazonite
K(AlSi3O8) - Lead-bearing Microcline
mineral
Rounded dark basalt pebble
Basalt, a fine-grained mafic volcanic rock
igneous
Quartz (Smoky/Granular variety)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Banded Calcite (often sold as Caribbean Calcite or Pink Calcite)
Calcium Carbonate (CaCO3)
mineral
Ironstone Concretion (Coprolite-like)
Goethite/Hematite Siderite Spheroid (FeCO3 or FeO(OH))
sedimentary
Agate
Agate (Silicon Dioxide, SiO2)
mineral
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
Turquoise (Blue Howlite imitation)
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
sedimentary
Dendritic Agate (specifically Orange/Tumbled)
Silicon Dioxide (SiO2) with Oxide Inclusions
mineral
Banded River Stone (Greywacke or Siltstone subtype)
Sedimentary Banded Siltstone
sedimentary
Basalt
Basalt (Mafic volcanic rock)
igneous
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Banded Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Druzy (on Geode Fragments)
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Silicon Dioxide (SiO2) with iron and other mineral inclusions
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral