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Gem and Ornamental

Gem and Ornamental

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AMBER AND COPAL 9Figure 1.9 Pieces of rough amber h m the Dominicm Republic.STRUCTURB m PROPBRTIES OF -CAN AMBERamber is h s t always marent, occurring in colours hmpale yellow to deep, rich, d-brown. It seldom contains flora or humcontains lots of dark debris (Fig. 1.10).inclusiaq though it o hSome Mexiam amber conmius typicall almost parallel strata of darkdebris (Fig. 1.11).By transmitted light, some Mean amber appears to have areas ofrich red colour, but it does not resemble the clear, burntaange tocherry red of burmite (Ri. 1.10).It can display strong green to blue fluomcence in daylight, whichappears to m e hm the body of the amber rather than the surfice.It has a chalky blue or chalky beige surface fluorescence under dmvioletlight (Fk 1.12 <strong>and</strong> 1.13).BurmiteBurmite comes hmthe Hukawnp Valley in Kachin State, in northemMyanmar (formerly Burma). Originally thought to be younger, it is

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