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Showing 1 to 1 of 1 for “"gemmology"”.
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INTEGRATED AND MULTI-SCALE CHARACTERISATION OF GEM MATERIALS LACKING LONG-RANGE ORDER. THE CASE STUDIES OF CHRYSOCOLLA AND ANDEAN BLUE OPAL
… which also determine their value in the field of gemmology. The study aimed to address some unresolved issues in the field of gemmology concerning two varieties of material lacking a long-range structural order, chrysocolla and Andean blue opal. Chrysocolla is a hydrated copper silicate …