Two supremely gemmy, complexly terminated, light sherry-colored topaz crystals with rhyolite matrix from the famous Thomas Range of Utah. This AESTHETIC specimen has interpenetrating topaz crystals at nicely opposing angles. The large topaz is 4.2 cm. The variety of internal refractions are amazing and beautiful. Ed Ruggiero purchased this outstanding, pristine specimen from Mike Springer, owner of Topaz International, at the February, 1978 Tucson Show.