White Jade (Nephrite or Jadeite)
Tremolite-Actinolite series (Nephrite) or NaAlSi2O6 (Jadeite)
metamorphic
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
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Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Mineral
Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
metamorphic
Moqui Marble (Iron Oxide Concretion)
Iron Oxide Concretion (primarily Limonite/Hematite around a Sandstone center)
sedimentary
Fossiliferous Limestone (Coquina)
Calcite (CaCO3) with Bioclastic inclusions
sedimentary
Septarian Nodule
Septarian Concretion (CaCO3 with Siderite/Limonite streaks)
sedimentary
Greenstone
Greenschist / Greenstone (Chlorite-Epidote facies)
metamorphic
Quartzite (with Quartz Veining)
Quartzite (SiO2)
metamorphic
Quartz with Schist/Mica Inclusions
Crystalline Silicon Dioxide (SiO2) with Phyllosilicates
metamorphic
Quartz with inclusions (likely Chlorite or Hornblende) and country rock
SiO2 (Quartz) with associated ferromagnesian minerals
Mineral/Igneous/Metamorphic association
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Orange Quartzite / Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
metamorphic
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Chalcedony Geode Fragment
Microcrystalline Quartz (SiO2)
mineral
Dyed Agate
SiO2 (Silicon Dioxide)
mineral
Sandstone Concretion
Clastic sedimentary rock (primarily Quartz SiO2)
sedimentary
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
![Lapis Lazuli (Raw Ore) (Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)) — metamorphic](https://media.rockidentification.com/de49c560-8228-4eb1-8165-e9ac490799d5-thumbnail.jpg)
Lapis Lazuli (Raw Ore)
Na8[Al6Si6O24]n(S,Cl,SO4,OH)2 (Lazurite component)
metamorphic
Mica Schist
Foliated Metamorphic Rock (rich in Muscovite or Biotite)
metamorphic
Dumortierite Quartz (Blue Quartz)
Al7BO3(SiO4)3O3 (Aluminum Boro-silicate included in Quartz)
mineral
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Basalt
Basalt
igneous
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
mineral
Schist
Schist (various mineral compositions)
Metamorphic
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
Eagle Eye / Grey Tiger Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
mineral
Honeycomb Coral Fossil (Favosites)
Favosites alpenensis
sedimentary
Granite
Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase)
igneous
Tiger's Eye (Jasper-like Chalcedony)
Silicon dioxide (SiO2) - Pseudomorph after Crocidolite
metamorphic
Basalt
Basalt (principally Plagioclase and Pyroxene)
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Quartzite (with mineral vein)
Metamorphosed Quartz-rich Sandstone (SiO2)
metamorphic
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Seraphinite
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
mineral
River Rock (likely Quartzite or Chert)
Quartzite (primarily SiO2)
metamorphic
Granite
Granite
igneous
Mica Schist
Muscovite/Biotite Schist
metamorphic
Granitic Pegmatite (River Rock specimen)
Granite / Pegmatite (composed of SiO2, KAlSi3O8, and NaAlSi3O8)
igneous
Diorite
Phaneritic intermediate plutonic rock
igneous
Quartz (various varieties)
SiO₂ (Silicon Dioxide)
Mineral