“Topaz after orthoclase. Specimen further labeled as (near Muldenberg) Specimen is from the collection of Rock Currier (1974). Scale at bottom of image is an inch with a rule at one cm.”

“All specimens are pseudomorphs after orthoclase. From left to right, Cassiterite ,Cornwall, United Kingdom, Talc and Pyrite from Llallagua, Bolivia and Topaz, Schneckenstein, Germany. Specimens are from the collection of Rock Currier (1974). Scale at bottom of image is an inch with a rule at one cm.”