Tanzanite, a variety of Zoisite, is a beautiful sapphire blue to purplish blue stone, much sought after recently and has been the current rage in India and other countries. The only known deposit is in Tanzania near Arusha. The larger pieces are extremely hard to come by with the closure of its famous “Block D mine”. Though suitable for jewellery, it is not a very hard stone of 6.5 on the MOH scale. A rare colour change (blue to pink) and a bluegreen tanzanite are also shown in the last 2 photos.
GEMS AND GEMOLOGY
Gemology has been a fascinating hobby of mine for over 20 years, reading up “Gemstones of the World” by Walter Schumann, attending practical classes on coloured gemstones, and visiting gem mining areas. I acquired some pieces, both priced and less well known, of various colours, shapes and cuts from gem-producing areas like Burma,Sri Lanka, Thailand, Cambodia etc. These have since grown to quite a collection.
Among the 63 gems species are: traditional gemstones - corundum(sapphire,ruby), beryl (emerald,aquamarine), fancy diamond; and others - spinel, chrysoberyl(cat's eye,alexandrite), tanzanite, garnet(tsavorite, spessartite,), tourmaline(rubellite,indocolite), zircon, topaz, quartz(amethyst,citrine), chalcedony(agate,chrysoprase), feldspar(moonstone,labradorite), kyanite, peridot, kunsite, scapolite, flourite and many other lesser known gemstones. (view complete list on blog archive on the right with traditional gemstones at the bottom. click on types of interest to you.)
I'm now divesting my collection. An abbreviated description is provided below each photo, including price. Example 1: m2(size ref) tq(turquoise gem) ov(oval shape) plgnbl(pale greenish blue colour) afg ( Afghanistan country) 3.82 (carat weight) (18.7x8.5mm)(dimensions LxW) in mm) op (opaque clarity) 175 (USD 175 price) 10b30 N18(ref no and location). Example 2:"sa (type sapphire), ov(shape oval), dpbl(colour deep blue), af(origin Africa), 4.43(weight in carat), (11.3x10.2x4.6mm)dimension LxWxD, ec(clarity eyeclean), 1k(price US$1000)".
Personal viewing can be done for friends in Singapore.
Those outside Singapore, purchase can be secured via registered post upon payment in USD(or Singapore equivalent) via paypal, money/postal order, account transfer/cheque (Singapore) or other mutually agreed arrangement. Do have a look and contact me for any other details.
Happy viewing!
Monday, January 4, 2010
c%202.5k%20sb%20T451%5B3%5D.png "m3 ta em nnppbl 2.90(10x7.3x4)c 2.5k sb T451")
ec%202k%20sb%20N310%5B5%5D.jpg "m2 ta ov mdltvi 3.44(10.9x8.6x5)ec 2k sb N310")
c%202k%20sb%20N405%5B4%5D.png "m4 bi-ta ov ppbl-gn 2.22(10x7.3x4.55)c 2k sb N405")
c%202k%20sb%20N142%5B1%5D.png "ma ta ov nnppbl 2.03(9x6.8x5.15)c 2k sb N142")
ec%2008%20T4-36%20N100%5B7%5D.jpg)
ec%2007%20T4-37%20T260%5B3%5D.jpg "s4 ta ov ppbl 1.16(7.9x5.8x3.8)ec 07 T4-37 T260")
c%200.7%20T4-38%20T150%5B4%5D.jpg "s4a ta ov pp 1.15(7.1x5.3x3.5)c 0.7 T4-38 T150")
ec%2006%20T4-40%20N43%5B2%5D.jpg "s ta pr plvi 1.0(7.7x5.7)ec 06 T4-40 N43")
ec%2005%20b3-31%20N56%5B3%5D.jpg "vs1 ta mq pp 0.96(9)ec 05 b3-31 N56")
ecvsi%2003%20b3-35%20N41%5B2%5D.jpg)
c%2004%20b3-37%20T60%5B3%5D.jpg "vs2b ta tr vibl 0.53(5.5x2.5)c 04 b3-37 T60")
c%2006%20T4-38%20N135.png "s cc-ta mq blu-pk 1.0(9.8x4.8x3.1)c 06 T4-38 N135")
ECsi%20025%20b3%20N36%5B2%5D.jpg "vs2b ta ov ltblgn 0.59(5.5x4.5x3.1)ECsi 025 b3 N36")
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