Shale
Shale (claystone/mudstone)
sedimentary
Category
Sedimentary And Igneous
Browse sedimentary and igneous specimens identified by the Rock Identifier community.
Learn about Sedimentary And Igneous in the encyclopedia
View all →
Sandstone (Water-worn pebble)
Arenite (primarily SiO2)
sedimentary
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Plutonic felsic igneous rock
igneous
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Dalmatian Stone and Lapis Lazuli
Dalmatian Stone (peralkaline rock) with Lapis Lazuli (metamorphic rock)
igneous
Diorite (River Pebble)
Intermediate plutonic igneous rock
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Phaneritic igneous rock)
igneous
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
sedimentary
Lapis Lazuli
Lapis Lazuli (Rock composed mainly of lazurite, calcite, and pyrite)
gemstone
Potassium Feldspar (Microcline / Orthoclase)
KAlSi3O8
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Moonstone
Orthoclase (KAlSi3O8) or Oligoclase with adularescence
gemstone
Garnet
Silicate mineral group (often Pyrope or Almandine in this color range)
gemstone
Agate
Cryptocrystalline quartz, SiO2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz pebble / River stone
SiO2 (Silicon Dioxide)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
K2 Jasper
Azurite in Granite
igneous
Greenstone (Epidosite)
Epidosite (Metamorphosed Basalt/Diabase)
metamorphic
Granite
Granite (Phaneritic Igneous Rock)
igneous
Basalt with Granite Inclusions (Xenolith)
Mafic Igneous Rock (Basalt) with Felsic Igneous Inclusion (Granite)
igneous
Fossilized Shell Impression / Siltstone Fossil
Bivalvia / Brachiopoda mold in Siltstone
fossil
Sandstone
Arenite (predominantly SiO2 with iron oxides)
sedimentary
Milky and Ferruginous Quartz
Silicon Dioxide (SiO2)
mineral
Diorite river stone
Intermediate Plutonic Igneous Rock (Diorite)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Amygdaloidal Basalt
Vesicular-Amygdaloidal Basalt (Mafic Extrusive)
igneous
Olivine in Basalt matrix
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
igneous
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite (River Cobble)
Granite (rich in feldspar, quartz, and biotite)
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral