Diorite (Porphyritic/Water-worn Pebble)
Diorite
Category
Browse carved stone specimens identified by the Rock Identifier community.
Diorite (Porphyritic/Water-worn Pebble)
Diorite
Granite
Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)
Rhyolite Cross Pendant
Rhyolite (High-silica volcanic rock)
Tree Agate
Silicon Dioxide (SiO2) with Dendritic Inclusions
Granite
Granite (Phaneritic intrusive igneous rock)
Granite
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)
Granodiorite
Granodiorite (intermediate plutonic rock)
Granodiorite
Granodiorite (NaCa0.5(AlSi3O8)2(Fe,Mg)2)
Granodiorite
Granodiorite
Granodiorite Pebble
Granodiorite
Granodiorite Pebble
Granodiorite
Jasper Mushroom Carving
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Aura Druzy Agate (Star Shape)
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating
Granite
Granite
Milky Quartz
Silicon Dioxide (SiO2)
Serpentine
(Mg,Fe)3Si2O5(OH)4
Crazy Lace Agate
Chalcedony (SiO2)
Basalt Pebble (Shaped)
Extrusive Igneous Rock
Diorite with Quartz contact
Intermediate Phaneritic Igneous Rock (Diorite)
Red Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2)
Granodiorite
Phaneritic Granodiorite
Granodiorite
Granodiorite (containing Plagioclase, Quartz, K-Feldspar, and Hornblende or Biotite)
Marble
Recrystallized Calcite (CaCO3)
Granodiorite
Granodiorite (Intermediate plutonic rock)
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Rainbow Moonstone
White Labradorite (Feldspar variety)
Green Aventurine (or Jadeite/Nephrite Jade)
SiO2 (Silicon Dioxide) - Aventurine Quartz
Bloodstone
Chalcedony quartz variety Heliotrope (SiO2)
Pink Granite
Phaneritic Acidic Igneous Rock (primarily SiO2, Al2O3, K2O)
Banded Calcite
CaCO3
Tumbled tiger’s-eye
Quartz (SiO₂) with crocidolite-derived fibers and iron oxides
Red Jasper
Silicon Dioxide (SiO2) with hematite impurities
Green Onyx (Commercial Marble/Travertine)
CaCO3 (Calcite / Banded Limestone)
Granite
Felsic intrusive igneous rock (Granite)
Polished green stone, likely serpentine or nephrite jade
Serpentine-group minerals (commonly antigorite/lizardite) or nephrite, a fibrous tremolite–actinolite aggregate
Hemimorphite or Red Quartz
SiO2 (Quartz) / Zn4Si2O7(OH)2·H2O (Hemimorphite)
Granite
Granite (Felsic intrusive igneous rock)
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
Granite
Phaneritic Felsic Igneous Rock
Granodiorite
Phaneritic intrusive igneous rock (intermediate composition)
Diorite (or Gabbro/Gneiss stream pebble)
Diorite
Granite
Granite