Milky Quartz (with potential inclusion)
Silicon Dioxide (SiO2)
mineral
Category
Mineral, Specifically A Rock Fragment
Browse mineral, specifically a rock fragment specimens identified by the Rock Identifier community.
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Rose Quartz
Silicon Dioxide with traces of titanium, iron, or manganese (SiO2)
mineral
Amber
Succinite (fossilized tree resin)
Organic Mineraloid
Milky Quartz
Silicon dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Native Gold (Placer Gold)
Native Gold (Au)
mineral
Quartz (Rose or Milky variety fragment)
Silicon Dioxide (SiO2)
mineral
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Botryoidal Hematite (Iron Stone Conglomerate)
Hematite (Fe2O3) in sedimentary matrix
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Druzy Quartz Geode (likely Smokey Quartz variety)
Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.
Mineral structure/Rock
Dragon Stone (Dragon Blood Jasper)
Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Coquina
Bioclastic Limestone (composed primarily of CaCO3)
sedimentary
Pink Himalayan Salt (Halite)
Halite - NaCl (Sodium Chloride) with trace Iron Oxide and Magnesium
Mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble (Tumbled Quartzite)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet Schist
Almandine Garnet Schist
metamorphic
Jet
Lignite (Anthracite-grade compact coal)
sedimentary
Nuummite
Orthorhombic amphibole (Gedrite and Anthophyllite mixture) - (Mg,Fe)7Si8O22(OH)2
metamorphic
Dendritic Opal (Common Opal)
Amorphous Hydrated Silica (SiO2·nH2O) with Manganese or Iron Oxide inclusions
mineral
Milky Quartz / Rose Quartz fragment
Silicon Dioxide (SiO2)
mineral
Carnelian
SiO2 (Silicon Dioxide) - Translucent reddish-brown variety of Chalcedony
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper (specifically Red Jasper)
Silicon Dioxide with Iron Oxides (SiO2 + Fe2O3)
sedimentary
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Fossiliferous Limestone
Calcite-rich Sedimentary Rock (CaCO3)
sedimentary
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
sedimentary
K2 Jasper (K2 Granite)
Azulite in Granite (Quartz + Feldspar + Biotite + Azurite)
igneous
Chert (specifically Flint or Dark Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Granite Pegmatite with Tourmaline and Muscovite
Pegmatite (Feldspar: KAlSi3O8, Quartz: SiO2, Schorl: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH))
igneous
Shale
Shale (fine-grained clastic sedimentary rock)
Sedimentary
Citrine Quartz
Silicon Dioxide (SiO2) - Ferric Iron impurities
mineral