Lapis Lazuli
Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
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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Likely amphibolite
Amphibolite, composed chiefly of hornblende and plagioclase
metamorphic
Diorite with Quartz Veins
Diorite
igneous
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Granite / Quartz with Mica inclusion
Granite (Plutonic Igneous Rock)
igneous
Granite
Granite (Phaneritic Igneous Rock)
igneous
Limestone
Sedimentary rock primarily composed of Calcite (CaCO3)
sedimentary
Green-and-black mottled metamorphic rock (likely serpentinite)
Serpentinite, composed mainly of serpentine-group minerals (e.g., antigorite or lizardite); identification from the photo is provisional.
metamorphic
Sandstone
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
River Cobble (Gneiss/Migmatite)
Gneissic Metamorphic Rock (composed mainly of Quartz, Feldspar, and Biotite)
metamorphic
Lapis Lazuli (Tumbled Stone)
Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (Lazulite-rich Metamorphic Rock)
metamorphic
Dalmatian Stone
Dalmatian Jasper (not a true jasper, typically an igneous perthite)
igneous
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
sedimentary
Marble
Metamorphosed Limestone
metamorphic
Gneiss (specifically a Hornblende Gneiss or Micaceous Gneiss)
Gneiss (metamorphic rock composed primarily of quartz, feldspar, and mafic minerals)
metamorphic
Banded gneiss pebble
Gneiss, a foliated metamorphic rock composed mainly of quartz, feldspar, and mica or amphibole
metamorphic
Sandstone
Arenite (SiO2 + various cementing minerals)
sedimentary
Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
igneous
Gneiss (specifically a Granitic Gneiss specimen)
Gneiss (high-grade metamorphic rock primarily composed of Quartz, Feldspar, and Biotite/Amphibole)
metamorphic
Dragon Blood Jasper
SiO2
mineral
Sandstone
Arenite
sedimentary
Orange Calcite (likely polished specimen)
Calcite
Mineral
Gneiss
Gneiss (Metamorphic rock composed primarily of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Marble (White)
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Sandstone (Tumbled/River Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Quartzite
Quartzite (primarily composed of SiO O₂)
Sedimentary Rock
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)
metamorphic
Sandstone (Red)
Arenite (composed primarily of SiO2)
sedimentary
Granite (Polished Countertop Surface)
Plutonic Igneous Rock (Felsic)
igneous
Bauxite
Bauxite (Aluminum Ore)
sedimentary
Quartzite pebble
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Likely banded gneiss fragment
Gneiss, a foliated metamorphic rock (exact mineral identification is uncertain from the image)
metamorphic
Slate
Foliated Metamorphic Rock (composed primarily of silica and alumina with iron and magnesium)
metamorphic
Mixed Tumbled Rocks and Minerals Collection
Mixed Minerals and Rocks (Quartz, Feldspar, Jasper, Agate, Lapis Lazuli, Sodalite, Rose Quartz, Fluorite, etc.)
mineral
Yellow chalcedony or quartz fragment
Microcrystalline quartz, SiO₂ (tentative; possibly iron-stained chalcedony)
mineral
Gneiss
Gneiss
metamorphic
Diorite
Diorite (intermediate intrusive igneous rock)
igneous
Red Sandstone
Arenite with Iron Oxide (Hematite) cement
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, e.g., Lizardite, Chrysotile, Antigorite)
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals like Antigorite, Lizardite, and Chrysotile)
metamorphic