Isbn: 9780656546671 - die achate (classic reprint) (3 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book gives a fresh look at the geological history of agates, offering an accessible and engaging alternative to outdated theories. The author presents us with new and compelling evidence to support their theory that agates originated as silica-rich gels. From there, the silica was transformed into its crystalline form, given color by iron compounds, and arranged into the layers and patterns we know today. This insightful and entertaining book challenges conventional wisdom about how these beautiful stones were formed, shining a light on the natural processes that can create works of art. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…