Mineral Photo Archive of Feldspars: Microcline, Orthoclase, Albite

Orthoclase var. Adularia with Chlorite coating from Aukopel, Kairnten, Austria

Orthoclase var. Adularia with Chlorite coating from Switzerland

Orthoclase var. Adularia with Chlorite coating from Tilcon Quarry, Acushnet, Bristol County, Massachusetts

Orthoclase var. Adularia with Chlorite coating from Lucmanier (Valle Del Lucomagno), Kanton Tessin, Switzerland

Orthoclase var. Adularia with Chlorite coating from Warren Bros. Quarry, Acushnet, Bristol County, Massachusetts

Orthoclase var. Adularia with Chlorite coating from Val Medel, Grischun, Switzerland

Orthoclase var. Adularia with Chlorite coating from Val Cristallina, Grischun, Switzerland

Orthoclase var. Adularia with Chlorite coating from Piz Starlera, Val Cristallina, Grisons, Switzerland

Orthoclase var. Adularia with Chlorite inclusions from Val Malenco, north of Sondrio, Lombardy, Italy

Orthoclase var. Adularia with Chlorite inclusions from Teufelsmühle, Habachtal, Austria

Orthoclase var. Adularia with Clinochlore from Gerental, Kanton Wallis, Switzerland

Orthoclase var. Adularia with Smoky Quartz from Alchuri, Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan

Orthoclase var. Adularia with Smoky Quartz from Grimsel Pass, Haslital, Bern, Switzerland

Orthoclase var. Adularia, Goethite pseudomorphs after Pyrite, Andradite Garnet from Copper Mountain, Prince of Wales Island, Alaska

Orthoclase var. Adularia, Quartz, Muscovite from Fieschergletscher, Switzerland

Orthoclase var. Amazonite Carlsbad Twin from Pike's Peak Batholith, El Paso County, Colorado

Orthoclase var. Baveno Twin from Washington Mine, Robinson County, North Carolina

Orthoclase var. Baveno-law twin with Quartz from Varese, Lombardy, Italy

Orthoclase var. Baveno-Twin with Quartz from Lake Maggiore, Baveno, Italy (Type Locality for Baveno-Twins)

Orthoclase var. Carlsbad Twin from Climax District, Lake County, Colorado

Orthoclase var. Carlsbad Twin from Goodspring, Clark County, Nevada

Orthoclase var. Carlsbad Twin from Pike's Peak Batholith, El Paso County, Colorado

Orthoclase var. Carlsbad Twin from Goodspring, Clark County, Nevada

Orthoclase var. Carlsbad Twin from Gunheath Pit, St. Austell District, Cornwall, England

Orthoclase var. Carlsbad Twin from Goodsprings District, Clark County, Nevada

Orthoclase var. Carlsbad Twin from White Eagle Mine, Willow Creek Camp, Saline Valley, Inyo County, California

Orthoclase var. Carlsbad Twins from Ray, Mineral Creek District, Pinal County, Arizona

Orthoclase var. Carlsbad-twin from Goodsprings District, Clark County, Nevada

Orthoclase var. Carlsbad-twins from Summit County, Colorado

Orthoclase var. Loxoclase from Bergers, (Canada West), Canada

Orthoclase var. Manebach Twin with Smoky Quartz from Tanokamiyama, Omi, Shiga, Japan

Orthoclase var. Moonstone with Actinolite from Southbridge, Worcester County, Massachusetts

Orthoclase var. Sanidine from Wehr Eifel, Westphalia, Germany

Orthoclase var. Sunstone from Scrub Oaks Mine, Mine Hill, Dover, Morris County, New Jersey

Orthoclase var. Valencianite from La Valencia Mine, Guanajuato, Mexico

Orthoclase var. Valencianite from Valenciana Mine, Guanajuato, Mexico

Orthoclase var. Valencianite Adularia from La Valenciana Mine, Guanajuato, Mexico

Orthoclase var. Valencianite with Calcite var. Argentine from La Valencia Mine, Guanajuato, Mexico

Orthoclase with Hyalite Opal from Tawara, Gifu pref., Japan

Orthoclase with Hyalite Opal from Tawara, Gifu Prefecture, Honshu Island, Japan

Orthoclase with Muscovite from Minas Gerais, Brazil

Orthoclase with Quartz from Holmistrand, Norway

Orthoclase with Rutile inclusions from Switzerland

Orthoclase with Smoky Quartz from Mokrusha Mine, Alabashka pegmatite field, Murzinka region, Middle Urals, Russia

Orthoclase, Carlsbad-twin from Pegmatite near Chuquicamata, Antofagasta, Chile

Orthoclase, Quartz, Muscovite from Baveno, Novara, Italy

Orthoclase, Schorl Tourmaline, Almandine, Quartz from Greenfield, Saratoga County, New York

Orthoclase, Smoky Quartz, Lepidolite, Cookeite, Elbaite from Grotta d'Oggi, Isola d'Elba, Italy (Type Locality for Elbaite)

Orthoclase-Microcline from St. Lawrence County, New York