Fluorite
Calcium Fluoride (CaF2)
mineral
Category
Sedimentary Or Metamorphic Derived
Browse sedimentary or metamorphic derived specimens identified by the Rock Identifier community.
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Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Mixed rock and mineral collection
Mixed lithologies; likely quartz, feldspar, basalt, granite, chert, sandstone, and metamorphic rocks
igneous, sedimentary, metamorphic, mineral
Green Aventurine
Aventurine Quartz (SiO2)
mineral
Quartz Geode
Quartz (Silicon Dioxide, SiO2) in a Geode
sedimentary
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Unakite
Epidotized Granite
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Unakite
Epidotized Granite
metamorphic
Jasper
Silicon dioxide (SiO2)
sedimentary
Red Jasper
Silica (Silicon Dioxide), Formula: SiO2 with Iron impurities
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron Oxide inclusions
sedimentary
Green Aventurine (Double-Terminated Wand)
Silicon Dioxide (SiO2) containing Fuchsite (Chromium-rich Muscovite Mica)
mineral
Yellow Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities, SiO2)
sedimentary
Mica Schist
Mica Schist (predominantly Muscovite or Biotite series)
metamorphic
Banded Schist
Mica Schist
metamorphic
Schist
Mica Schist
metamorphic
Anyolite (Ruby in Zoisite)
Zoisite with inclusions of Corundum; Ca2Al3(SiO4)3(OH) + Al2O3
metamorphic
Serpentine
Serpentinite (group of minerals: (Mg,Fe,Ni,Al)3Si2O5(OH)4)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Schist
Mica Schist
metamorphic
Quartzite (with possible Iron staining)
Meta-orthoquartzite (primarily SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Green Aventurine (Fuchsite-bearing Quartzite)
Silicon Dioxide (SiO2) with Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Mica Schist
Mica Schist (primarily composed of Muscovite, Biotite, and Quartz)
metamorphic
Red Jasper
Jasper (variety of Chert) - SiO2
sedimentary
Jasper with Iron Staining
Silicon Dioxide (SiO2) with Ferric Oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Tumbled quartzite pebble
Quartzite; predominantly microcrystalline quartz (SiO₂)
metamorphic
Serpentine
Antigorite/Chrysotile group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
metamorphic
Schist
Mica Schist
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Carnelian (Agate)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
mineral
Muscovite Mica
Muscovite (Potassium Mica) KAl2(AlSi3O10)(OH)2
Mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Aventurine Quartz
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Cardstock (Paper)
Cellulose (C6H10O5)n
sedimentary (man-made)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral