Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
metamorphic
Category
Organic Gemstone (Often Associated With Sedimentary Sequences)
Browse organic gemstone (often associated with sedimentary sequences) specimens identified by the Rock Identifier community.
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Amber
Succinate (Fossilized Tree Resin)
mineraloid
Yellow Topaz
Aluminum silicate fluoride hydroxide, Al2SiO4(F,OH)2
mineral
Petrified Wood
Silicified wood (SiO2)
fossil
Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert
Microcrystalline quartz (SiO2)
sedimentary
Amber
Succinicum (C10H16O)
mineral
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Mica Schist
Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)
metamorphic
White Howlite
Howlite (Calcium borosilicate hydroxide, Ca2B5SiO9(OH)5)
mineral
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint)
Silicon Dioxide (SiO2)
sedimentary
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Red Jasper
Silicon dioxide (SiO2) with hematite impurities
sedimentary
Aquamarine
Beryl (Be3Al2(SiO3)6)
gemstone
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
sedimentary
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Quartz (Chert/Quartzite variant)
Silicon Dioxide (SiO2)
mineral
Amber (Copal)
Fossilized Tree Resin
mineraloid
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)
sedimentary
Turquoise (possible Dyed Magnesite/Howlite)
CuAl6(PO4)4(OH)8·4H2O
mineral
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert Nodule
Microcrystalline Silica (SiO2)
sedimentary
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Chert (Green variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
gemstone
Chert (Flint/Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral
Yellow Sapphire
Corundum (Al2O3)
gemstone
Red Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide impurities)
sedimentary
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
sedimentary
Petrified Wood
Silicified wood (principally SiO2)
sedimentary