Red Jasper (with Quartz inclusions)
Silicon Dioxide (SiO2)
sedimentary (physico-chemical)
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
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Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Iron Hydroxide inclusions
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral impurities
sedimentary
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Red Sandstone (Iron-rich)
Ferruginous Sandstone (SiO2 with Iron Oxides)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Crystalline Silicon Dioxide with trace Titanium, Iron, or Manganese (SiO2)
mineral
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Jasper Breccia
Silicon Dioxide (SiO2) with impurities
sedimentary
Chert / Flint
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Quartz with inclusions
SiO2
mineral
Moss Agate
SiO2 (Silicon Dioxide) with dendritic inclusions
Mineral
Desert Rose
Gypsum (variety Selenite) or Barite, CaSO4·2H2O
mineral
Plagioclase Feldspar
Plagioclase (NaAlSi3O8 - CaAl2Si2O8 series)
mineral
Milky Quartz (river pebble)
Quartz (Silicon Dioxide, SiO2)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Rose Quartz
Rose Quartz (SiO2)
mineral
Blue Tiger's Eye
Silicon Dioxide (SiO2) with Crocidolite inclusions
Mineral (Pseudomorph)
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Fancy Jasper (Bloodstone variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Calcite
Calcite (Mineral; CaCO₃)
Mineral
Quartz (Smoky/Milky)
Silicon Dioxide (SiO2)
mineral
Malachite
Malachite (Cu2CO3(OH)2)
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Chert (Cream Variety)
Microcrystalline silica (SiO2)
sedimentary
Sandstone (Calcareous Sandstone)
Calcareous Sandstone (primarily SiO2 with CaCO3 cement)
sedimentary
Moonstone
Orthoclase (KAlSi3O8), specifically the variety showing adularescence
mineral
Banded Agate (specifically Sardonyx or Black Agate variety)
Silicon Dioxide (SiO2) - Chalcedony / Cryptocrystalline Quartz
mineral
Pyrite
Pyrite (Iron Disulfide), FeS2
Mineral
Peridot
Olivine (specifically, the gem-quality variety forsterite, (Mg,Fe)2SiO4)
Mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Raw Citrine
Citrine (Silicon Dioxide - SiO2)
mineral
Orange Quartz with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate hydroxide (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
mineral
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Chert (Green variety)
Microcrystalline Quartz (SiO2)
sedimentary