 | | Book | | including a pink ruby corundum (back left); green prase opal (back right); blue sapphire corundum; orange spessartine...clear quartz; purple amethyst; orange 'cat's eye' opal; yellow danburite. In the centre are blue tanzanite;...kornerupine Li- lithium B - beryl Chr- chrysoberyl 0-opal Cl- clinohumite R- ruby Cp- chrysoprase S-sapphire...warrant inclusion: emerald (a variety of beryl), opal (page 80) and amazonite (page 83). Ethiopia, which...FORSTERITE MINERALS& GEMSTONES OFEASTAFRICA 79 Opal • Named from Latin opalus, from Greek opallios |  | | Book | | Lower left: Cobaltocalcite group. from Lerida. Spain. Folch collection. Barcelona. Lower right: The mineral...Britain Ireland Italy Netherlands Norway Portugal Spain Sweden Swi~erland 181 13 63 72 75 16 99 136 138...Switzerland; and the Folch Museum at Barcelona, Spain. Because of the difficulty in researching Eastern...J ) ortugai e Madrid -,,.J ( Lisbon \ ~ Spain I 12 l I Belgium Tervuren •• 13 Brussels...Allier, France Mounana, Gabon Rodalquilar, Almeria, Spain Tachgagalt, Morocco Tachgagalt, Morocco Musonoi |
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