Orthoclase: Mineral information, data and localities.

Orthoclase (Carlsbad twin from the original locality!) Loket, Sokolov District, Karlovy Vary Region, Czech Republic

Mineral Specimens / Spain - Fabre Minerals

Dr. Luis A. Gonzalez, MD, San Benito, TX

Orthoclase crystals hi-res stock photography and images - Alamy

Mineralatlas Lexikon (english Version)

Dr. Luis A. Gonzalez, MD, San Benito, TX

Specimen Identification Guide, Public

Rhodochrosite - Geology Superstore

Rhodochrosite - an overview

Southeastern Rondônia - DOBES, rondonia