Phenakite group - UV-Vis spectra

• Colorless phenakite - 0.50 ct - Unknown locality

• Gray eucryptite/albite – 1.56 ct – (Londonderry, Nepean, Coolgardie), Australia

• Very-light-yellow willemite – 0.42 ct – Franklin, New Jersey, USA

Colorless phenakite - 0.50 ct - Unknown locality

Gray eucryptite/albite – 1.56 ct – (Londonderry, Nepean, Coolgardie), Australia

Very-light-yellow willemite – 0.42 ct – Franklin, New Jersey, USA