2018 mest populære Gem and Ornamental Materials of Organic Origin by Maggie Campbell Pedersen 1yp6MJTB

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Product Description:

The materials covered in the book include Amber and Copal Jet Ivory Bone Antler Rhino horn Horn Tortoiseshell Pearl Shell Coral and other materials of plant and animal origin that have been used as gem or ornamental material. The book describes how to recognize them and how to distinguish them from the materials most commonly used to imitate them for example plastic. A comprehensive list of materials is included and each is presented with details of its origin availability and cons