Igneous And Mineral

Amazonite

K(AlSi3O8), Microcline (potassium feldspar)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Clear Quartz

Silicon Dioxide (SiO2)

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Carnelian

SiO2 (Silicon Dioxide) - Carnelian Agate/Chalcedony

Granite

Granite (Phaneritic Igneous Rock)

Granite

Phaneritic Felsic Igneous Rock

Smoky Quartz

Silicon Dioxide (SiO2)

Amethyst

Crystalline Quartz (SiO2) with iron impurities

Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Granite

Phaneritic plutonic rock (composed mainly of SiO2, Al2O3, K2O, and Na2O)

Sodalite Syenite

Sodalite-bearing Syenite (Na8(Al6Si6O24)Cl2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (with inclusions)

Silicon Dioxide (SiO2)

Blue Moss Agate

Silicon Dioxide (SiO2) with mineral inclusions

Amygdaloidal Basalt

Amygdaloidal Basalt (Ca-rich Plagioclase, Pyroxene, and Olivine)

Greenstone / Epidosite

Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)

Granite

Phaneritic Plutonic Igneous Rock (Rich in SiO2)

Orbicular Granite

Orbicular Granitoid

Granite (Pegmatitic)

Phaneritic Felsic Igneous Rock

Basalt

Mafic Extrusive Igneous Rock

Potassium Feldspar (Orthoclase)

KAlSi3O8

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Labradorite (tumbled)

Labradorite (a plagioclase feldspar mineral between anorthite and albite; chemical formula: (Ca,Na)(Si,Al)4O8)

Smoky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Granite

Phaneritic Felsic Intrusive Rock

Gneiss

High-grade regional metamorphic rock (Foliated)

Granite

Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8), and Mica)

Amazonite

Microcline (KAlSi3O8)

Indigo Gabbro

Gabbro (MaFIC intrusive rock)

Basalt River Cobble

Basalt (Aphanitic Mafic Volcanic Rock)

Gneiss (Granitic Gneiss)

Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)