Orthoclase: Mineral information, data and localities.

Adularia, Alpine rock, Feldspar, Orthoclase

Potassium Alum - National Gem Lab, Alum

Minerals, Free Full-Text

Orthoclase: Pink granite, Mohs hardness and moonstone

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

Orthoclase Mineral Data

Mineral Specimen Cleaning and Preparation - NO SALES! No Lapidary!

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

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

Anorthoclase Mineral Physical - Optical Properties and Occurrence

Sanidine: Mineral information, data and localities.