  Mining of Tanzanite In the foothills of Mt. Kilimanjaro in Tanzania is the only known mining site of tanzanite, called Merelani Hills. Many rumors have surfaced throughout the years concerning other locations, but none have been proven. You can almost see for miles as you stand on top of the hills and view the mines. The Merelani Hills (as people refer to the actual area of the mines) have been the host for the tanzanite rough since 1967. The once populated area, where thousands of workers were busy extracting quality rough tanzanite, is now pretty quiet. Not much action for an area, which gave the world its #1 demanded colored gem. There once were over 2,000 pits or holes in the ground with miners going deep into the surface of the earth to find its deep colored treasures. However, with time came the lack of productivity, causing many to abandon and leave this beautiful area. Today there are about 150 pits in the grounds with several hundred workers. Rarity of Tanzanite Tanzanite is rare because of the single source of mining and gem grade colors, darkness, and sizes over 2 cts. are not common. The rarity of the supply slowly became an issue in the eyes of manufacturers, retailers and consumers. Sure the rarity added to the ambiance and the mystery of the gem, but it also added to the price tag. When the mines collapsed in 1998 due to severe flooding, this added to an already slow production schedule. People realized this beautiful gem would not be around forever. Although still produced, the rarity still plays a big role in the character of tanzanite. Many feel it will not be around in years to come. We would rather appreciate it today and not look to tomorrow. The major fault block D that produces the biggest, darkest pieces is still NOT OPEN as of 2002. TERMS AND CONDITIONS OF SALE Items won need to be paid for within 24 HOURS from close of auction.
To save on shipping charges auctions may be combined for as many items as can be won in 10 day period.
Your order is shipped within 48 hours on realizing the full payment. My aim is a 100% positive rating, please contact us with regard to any problems you may have before placing a negative or neutral comment on Bid or Buy  | | TANZANITE PARCEL TOTAL WEIGHT: 1.10CTS SIZE approx: 3.00MM EACH NUMBER OF GEM: 10 PIECE SHAPE: OVAL COLOR: VIOLET BLUE CLARITY: IF = FLAWLESS ORIGIN: TANZANIA HARDNESS: 6.5 HEAT: LIGHT SPECIFIC GRAVITY: 2.3-3.4 REFRACTIVE INDEX: 1.69-1.70 CHEMICAL COMPOSITION: Ca2AI3Si3012OH CRYSTAL STRUCTURE: ORTHORHOMBIC THESE ARE AUTHENTIC TANZANITES COMES PACKED IN A GEMBOX THE WINNING BIDDER WILL RECEIVE ALL 10 TANZANITES!!!!!! 
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