Chen et al., “ Brownish red zircon from Muling, China,” Spring 2011 G&G, pp. 126–132).Īccording to Aijun Yi, director of mineral resource administration in Muling, the region has produced large amounts of gem-quality eluvial materials since 1994, including corundum, brownish red zircon, garnet, and spinel (T. Sun, “Basalt related to ruby and sapphire in eastern Heilongjiang and reconstruction of paleovolcanic mechanism,” Acta Petrologica et Mineralogica, Vol. As a result, production has been very limited, and very little information was published about rubies and sapphires from Muling until 1995 (J.X. Corundum was known in Muling as early as 1985 after preliminary exploration, further activity virtually stopped because of technical and logistical limitations.
The main deposits are seated in mountain valleys about 70 km from the town center. An emerging deposit in Muling, in northeast Heilongjiang province (figure 1), produces gem-quality corundum comparable to some world-renowned sources. Only a few Chinese sources produce gem-quality corundum, such as Changle, in Shandong province, but sapphires from that location are not considered top quality in the trade because of their dark hues. Muling, the site of an emerging corundum deposit, is located in northeastern China. Note: This benefit is not available on British Airways’ 'Hand Baggage Only/Basic' fares.Comprehensive CAD/CAM For Jewelry Certificateįigure 1. On purely domestic itineraries, using the baggage allowance "piece" system, for tickets with no ticketed baggage entitlement - the assurance of one piece of checked baggage, weighing up to 23 kgs.Ĭustomers travelling in First and Business Class cabins will, in most cases, receive an even greater free checked baggage allowance. On international itineraries, that include domestic sectors, using the baggage allowance “piece” system – one additional bag*, weighing up to 23kgs, up to a maximum of two pieces. On international or domestic itineraries using the baggage allowance "weight" system - 15 kgs in addition to the ticketed Economy Class baggage allowance. ***Extra baggage allowance for Sapphire frequent flyersĪs a Sapphire frequent flyer, the following special checked baggage privileges will apply when you fly on oneworld airlines: **Priority baggage handling is not currently available on flights operated by British Airways. *In accordance with the individual policy of the oneworld airline operating the flight.
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