Category Archives: Authors-Holfert John

A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah (Topaz Mountain), Volume 1: by John Holfert et alia: A Short Review

Topaz is one of those beautiful minerals which, at its best, is water clear and appears in many different colours, including a pale blue, a delicate yellow and a watery light brown vaguely reminiscent of a nice dry sherry. As … Continue reading

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