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Gem Expeditions - welcome to paradise island of gems
gemmology, sri lanka, gem, mine, gemology, gemmologist,
gemologist, jewellery, jewelry, sri lanka, gem course, lapidary, Ceylon, tour, rathnapura, ratnapura,
diploma, island, geology, mineralogy, alluvial, museum, crystals, optical properties, Hardness, Cleavge,
SG, Refraction, Bireriengence(DR), Dichroism, Spectrum & Luminescence, 4c's, cuts, instruments, 10x Loupe,
Polariscope, Dichroscope, Spectrscope, UV Light, Refractometer, Microscope, collector, rock, treasure, precious,
Corundum, Sapphire, Padparadscha, Star Sapphire, Star Ruby, Yellow, Pink, White, Geuda,
Alexandrite, Cat's eyes, Chrysoberyl, Aquamarine, Quartz, Amethyst, Garnet, Pyrope, Almandine Spessartine,
Hessonite , Spinel, Topaz, Tourmaline, Zircon ,Moonstone, Sinhalite, Taaffeite, Ekanite, Andalusite,
Iolite, Sapphirine, Diopside, Enstatite, Kornerupine, Sphene, Apatite, Fluorite, Scapolite, Danburite,
Fibrolite, Phenakite, Scheelite, Axinite, Kyanite, Serendibite, Hirosha, Yahampath
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