Brachiopod Fossil in Sedimentary Matrix
Phylum Brachiopoda in Siltstone/Mudstone matrix
fossil
Category
Metamorphic And Sedimentary
Browse metamorphic and sedimentary specimens identified by the Rock Identifier community.
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Epidote
Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Mineral
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Pink Jade (Dyed Quartzite)
Silicon Dioxide (SiO2) - primarily Quartzite or Quartz
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Epidosite
Epidosite (composed mainly of Epidote - {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
metamorphic
Schist
Mica Schist
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Iolite (Cordierite)
Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18
metamorphic
Fuchsite on Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Quartzite (or Massive Quartz)
Silicon Dioxide (SiO2)
metamorphic
Blue Quartzite (Aventurine)
Quartzite (primarily SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
metamorphic
Mica Schist
Medium-grade regional metamorphic rock (composition varies)
metamorphic
Red Quartzite
Metamorphic Quartzite (predominantly SiO2 with iron oxide impurities)
metamorphic
Schist
Mica Schist (Group of medium-grade metamorphic rocks)
metamorphic
Quartzite with Iron Inclusions
Metamorphic Silicon Dioxide (SiO2) with impure Limonite/Hematite
metamorphic
Slate
Metamorphosed Shale (Fine-grained Foliated Metamorphic Rock)
metamorphic
Schist (Biotite/Mica Schist)
Medium-grade regional metamorphic rock (rich in Phyllosilicates)
metamorphic
Sandstone
Sandstone ( преимущественно SiO2 )
sedimentary
Shale
Laminated Mudstone (Shale)
sedimentary
Sandstone
Arenite
sedimentary
Sapphire
Corundum (Al2O3)
mineral
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
metamorphic
Schist (Garnet-Mica Schist)
Garnetiferous Mica Schist (primarily Muscovite/Biotite and Almandine Garnet)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Epidosite
Epidosite (composed primarily of Epidote and Quartz)
metamorphic
Unakite (Tumbled)
Unakite (altered granite)
metamorphic
Quartz (Quartzite fragment)
Silicon Dioxide (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
mineral
Marble (Fire and Ice or Pink Veined)
Metamorphosed Limestone (principally CaCO3)
metamorphic
Dragon Blood Jasper
Epidote-containing Quartz Chalcedony (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))
metamorphic
Green Quartzite (or Aventurine)
SiO2 (Silicon Dioxide) primarily, with Fuchsite inclusions (K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Red Quartzite
Metamorphosed Quartz Sandstone (SiO2 with Iron Oxide impurities)
metamorphic
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
igneous
Slate
Slate (Foliated metamorphic rock consisting mainly of quartz and muscovite or illite)
metamorphic
Stiped Slate Beach Pebble
Low-grade Metamorphic Slate with Quartz Vein (SiO2 on Phyllosilicate base)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, chlorite, and micas)
metamorphic