A Hand-book of Precious Stones
A practical handbook that explains the physical and optical properties of gemstones and accessible tests for merchants, craftsmen, and amateurs. It outlines crystallization, cleavage, fracture, refraction, polarization, pleochroism, color, lustre, streak, hardness, specific gravity and related behaviors, describes cutting and polishing techniques, and provides concise, gem-by-gem accounts — including diamond, corundum varieties, beryl, chrysoberyl, opal, pearl, topaz, tourmaline, quartz varieties and many others — covering identification methods, distinguishing tests, commercial uses and relative values, and closes with reference tables for hardness and specific gravity.
About This Book
A practical handbook that explains the physical and optical properties of gemstones and accessible tests for merchants, craftsmen, and amateurs. It outlines crystallization, cleavage, fracture, refraction, polarization, pleochroism, color, lustre, streak, hardness, specific gravity and related behaviors, describes cutting and polishing techniques, and provides concise, gem-by-gem accounts — including diamond, corundum varieties, beryl, chrysoberyl, opal, pearl, topaz, tourmaline, quartz varieties and many others — covering identification methods, distinguishing tests, commercial uses and relative values, and closes with reference tables for hardness and specific gravity.
About the Author
You May Also Like
A dictionary of men's wear
by William Henry Baker
A Short Treatise on Boots and Shoes, Ancient and Modern
by Walter H. Goater
A Short Treatise on Head Wear, Ancient and Modern
by Anne C. Goater
A Treatise on Hat-Making and Felting / Including a Full Exposition of the Singular Properties of Fur, Wool, and Hair
by hatter John Thomson
An embroidery book
by Anne Knox Arthur
Ancient Egyptian, Assyrian, and Persian costumes and decorations
by Mary G. Houston