Opal Gemstones - A Collection of Historical Articles on the Origins, Structure and Properties of Opal

Focusing on opal gemstones, this comprehensive guide delves into their properties, origins, and structure, providing a thorough understanding of the subject. Curated from classic materials dating back to the early 1900s, it offers valuable insights into gemology and crystallography, making it relevant for modern readers. Each publication includes details on original sources, ensuring a rich historical context. This installment is designed for those seeking a foundational knowledge of opals, accompanied by high-quality reproductions of the original text and artwork.