Fluorite (Green)
Fluorite (Calcium Fluoride, CaF2)
mineral
Category
Mineral, Often Found As A Rock
Browse mineral, often found as a rock specimens identified by the Rock Identifier community.
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Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Banded Chert
Silicon Dioxide (SiO2)
sedimentary
Chert
Silicon dioxide (SiO2)
Sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (variously known as Flint)
Microcrystalline quartz (SiO2)
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Pink Polished Marble (or Limestone) Pillar
Recrystallized Calcium Carbonate (CaCO3)
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Metamorphosed Sandstone (SiO2 dominant)
metamorphic
Carnelian
Red Chalcedony (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Gneiss
Gneiss
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineralological
Chert Pebble
Microcrystalline silica (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Unakite-veined Granite / Epidotized Granite
Epidotized Granite (FeCu2Al2(Si2O7)(SiO4)(OH)2)
igneous
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper
Silicon dioxide with iron oxide inclusions (SiO2 + Fe2O3)
sedimentary
Chert
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Glauconite (Greensand)
(K, Na)(Fe3⁰, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂
sedimentary
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Olivine (Dunite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Chert (often associated with Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Basanite variety)
Microcrystalline Quartz (SiO2)
sedimentary
Carnelian
SiO2 (Chalcedony with iron oxide impurities)
mineral
Chert (Flint Pepple)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Chert (Silica Pebble)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Aventurine
Aventurine Quartz (SiO2 + Fuschite inclusions)
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz - SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral