Earl verbeek (5 resultados)

Soft cover. Condición: Very Good. ORIGINAL 1992 PUBLICATION; this is NOT ex-library; softcovers; in very good condition. Journal.

Soft cover. Condición: Good. ORIGINAL 1992 PUBLICATION; softcovers; spine reinforced with tape; o/w in good condition. Book.

Pamphlet. Condición: Very Good. Vol 89, pp. 814-824, Map, Photos, 4to, Extracted from orig Vol, begins with title page, trimmed & stapled, thus is like a pamphlet, VG.

Soft cover. Condición: Good. ORIGINAL 1992 PUBLICATION; softcover; ex-library; missing rear pocket (but the large folded plate is present; loosely-inserted; complete for this publication); inside rear cover scuffed where pocket removed; spine reinforced with tape; o/w in good condition. Book.

Trade Paperback. Condición: Fine. Book is in excellent condition. Binding is solid and square, covers have sharp corners, exterior shows no blemishes, text/interior is clean and free of marking of any kind. 209 pages with b&w illustrations and numerous color photos. This book takes a broad look at the hobby of mineral fluorescence. It offers discussions of the major fluorescent minerals and mineral groups, techniques for collection them either on field trips or through trade and purchase, and the many ways fluorescent minerals can be displayed and enjoyed in the home. Fluorescent minerals present a puzzle. Many are of quite ordinary appearance in daylight, but when placed under the invisible rays of an ultraviolet lamp in a darkened room, they suddenly glow in beautiful colors. The transformation is so marked and so mysteriously compelling that many people instantly wish to learn more about it. This book provides information on the nature of ultraviolet light, how it causes fluorescence in a wide range of minerals, and how hobbyists can extract years of pleasure learning about them. Keywords: Mineral Fluorescence, Minerals, Fluorescence, Fluorescent, Calcite, Hyalite Opal, Tugtupite, Benitoite, Mineral Groups, Techniques, Collecting, Scheelite, Tungsten, Ultraviolet Lamp.…