The Heat Treatment of Ruby and Sapphire [signed]

Hardcover. First Edition. Full Title: The Heat Treatment of Ruby and Sapphire. Text body is clean, and free from previous owner annotation, underlining and highlighting. Binding is tight, covers and spine fully intact. Illustrated paper over boards, (xviii), 236 pages, illustrated in black and white with some color. "An account of the most commonly practiced heat treatment methods and apparatuses, which alter the appearance of the ruby and sapphire; their occurrences, descriptions, inclusion characteristics, identification, and other features." Corners and spine ends bumped, Ted Themelis's business card taped to front free end paper. Condition: Very Good Condition. Jacket Condition: No Dust Jacket. Size: Octavo (standard book size). Shipped Weight: 2 lbs 9 oz. Category: Science & Technology; ISBN: 0940965100 BZDB7 Inventory No: 013361.