学科筛选

  • 1. Photochromism of Sodalite

  • 【来源】

    [外文期刊]

  • 【作者】

    R.W.M.Woodside 

  • 【摘要】

    Photochromism (called "tenebrescence" by the fluorescent community) refers to the property of reversible color change in a chemical substance when exposed to visible light or other electromagnetic rad...

  • 2. Red Diamond

  • 【来源】

    [外文期刊]

  • 【作者】

    Wendell E. Wilson 

  • 【摘要】

    The most valuable thing on earth is the diamond, known only to kings, and to them imperfectly. Pliny (79 A.D.) Gemstones are the flowers of the mineral kingdom, and the fancy colored diamond is the or...

  • 3. What is a "Classic"?

  • 【来源】

    [外文期刊]

  • 【作者】

    Thomas P. Moore 

  • 【摘要】

    At the 2011 Munich Show, the main display area featured an alcove marked "European Classics," wherein the visitor could see hundreds of specimens from (mostly) extinct European localities-wonderful ol...

  • 5. Notes from the Editors

  • 【来源】

    [外文期刊]

  • 【作者】

    German Gift Items 

  • 【摘要】

    Rene Konig at Mining-Calendar.com has (as her web address implies) a nifty new mining-scene calendar for 2014 called "Trea-hand we want true "classics" to have transcended fashion and contingent judgm...

  • 6. Collecting in the Solno mine

  • 【来源】

    [外文期刊]

  • 【作者】

    Jacek Szczerba 

  • 【摘要】

    In the 1980s I was already quite an advanced mineral collector, taking part in all the main mineralogical events in Poland and in its (former) sister socialist countries. Together with Jola, a student...

  • 9. Calcite from Belgium

  • 【来源】

    [外文期刊]

  • 【作者】

    Harjo Neutkens 

  • 【摘要】

    Belgium: a haphazard collection of Walloon (French), Flemish (Dutch) and German communities that gave us the music of Jacques Brel and the art of Rene Magritte. The country where Adolphe Sax invented ...

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