The fake in the crown?

Besette, F.
December 1991
New Scientist;12/28/91, Vol. 132 Issue 1800/1801, p25
Takes a look back at mineralogy through the ages and how fake precious stones and gems have been common since biblical times. Medieval mineralogy; The use of science in the 18th century to study gems; Crystallography in the beginning of the 20th century; Techniques for making and altering gemstones. INSET: Crystal-gazing as a way to understand gems, by S. Bowler..


Related Articles

  • Gold bugs. Burdick, Alan // Sciences;Sep/Oct92, Vol. 32 Issue 5, p6 

    Discusses findings that have drawn attention to the phenomenon of biomineralization, the ability of some microorganism to form deposits of minerals and metals. One of the most unusual biomineralizers is the single-celled magnetotactic bacterium Aquaspirillum magnetocticum. Research of John R....

  • Inca Rose. Scovil, Jeffrey A. // Earth;Mar1993, Vol. 2 Issue 2, p64 

    Features the manganese carbonate mineral rhodochrosite. Location of mineral deposits; Formation; Shapes; Crystallography; Color shades; Mineralogical characteristics; Uses; Rhodochrosite for collectors from the Home Sweet Home Mine in Alma, Colorado.

  • Tourmaline. Scovil, Jeffrey A. // Earth;May93, Vol. 2 Issue 3, p66 

    Features the mineral tourmaline. Origin of name; Colors; Chemistry; Sources; Uses.

  • Selenium. Hunter, B.T. // Consumers' Research Magazine;Aug91, Vol. 74 Issue 8, p8 

    Reports that selenium, a non-metallic trace mineral, has been added to the 10th edition of the Recommended Dietary Allowances (RDAs) released in 1989. Selenium's importance for livestock health; Benefits to humans; Recommended levels; Excess and deficiency.

  • Novel thioether bond revealed by a 1.7 A crystal structure of galactose oxidase. Itoh, N.; Phillips, S.E.V. // Nature;3/7/1991, Vol. 350 Issue 6313, p87 

    Presents the crystal structure of galactose oxidase at 1.7 angstrom resolution. Reveals a unique structural feature at the copper site with a novel thioether bond linking Cys 228 and Tyr 272 in a stacking interaction with Trp 290.

  • Responses of evaporite mineralogy to inflow water sources and climate during the past 100 k.y. in... Li, Jianren; Lowenstein, Tim K. // Geological Society of America Bulletin;Oct97, Vol. 109 Issue 10, p1361 

    Focuses on the information on water inflow sources and climate over the past 100 k.y. which the mineralogy of cored sediments from Badwater Basin in Death Valley, California provide. Details on the information provided; Geology and climate of Death Valley; Method employed in this study.

  • Mineralogical study of base metal tailings with various sulfide contents, oxidized in laboratory columns and field lysimeters Groat, L. A.; Shaw, S. C.; Jambor, J. L.; Blowes, D. W.; Hanton-Fong, C.J.; Stuparyk, R. A. // Environmental Geology;Feb1998, Vol. 33 Issue 2/3, p209 

    Oxidation of a flotation-derived, low-sulfide tailings containing approximately 0.4 wt.% S was compared with simultaneously oxidized tailings containing 1.0 wt.% S and 2.5 wt.% S to assess their acid generating characteristics. Each tailings type was exposed to oxidation forthree years in...

  • Structure and growth mechanism of mineral dendrites. Chopard, B.; Herrmann, H.J. // Nature;10/3/1991, Vol. 353 Issue 6343, p409 

    Analyzes the shapes and fractal properties of mineral dendrites from several different origins. Proposes a lattice reaction-diffusion model for their formation. Materials and methods; Results and discussion.

  • A new high-pressure form of MgAl2O4. Irifune, T.; Fujino, K. // Nature;1/31/1991, Vol. 349 Issue 6308, p409 

    Reports the transformation of magnesium aluminum spinel (MgAl2O4) to a new high-pressure form. Similar structure to calcium territe; Suggests new form may be a host of aluminum in the earth's lower mantle.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics