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!

Friday, January 15, 2010

PREHNITE – YELLOW GREEN ENVY

Named after a Dutch colonel von Prehn who introduced it to Europe, Prehnite is usually oily green though it can range to pale yellow, yellowish green to brown. It has vitreous to mother-of-pearl lustre. Some fibrous prehnite are cut en cabochon to show a cat’s eye effect. Because if its colour, the stone can sometimes be confused with peridot and chrysoprase.  Found in Australia, China, Scotland, South Africa and USA.

e pre prc lmgn mal 61.73(20.8x20x13)tp 450 10b11 L19 e pre prc lmgn mal 61.73(20.8x20x13)tp 450 10b11 L19
        g pre ovc ygn 33.64(21.9x18.5x10.5)tp 300 10b13 N51
g pre ovc ygn 33.64(21.9x18.5x10.5)tp 300 10b13 N51
     g pre ov gny-wh 33.60(29x25x4.6)trp 350 10b12 N72
g pre ov gny-wh 33.60(29x25x4.6)trp 350 10b12 N72
         l2 pre slf ygn af 7.92(13.2x11.3x6.8)tp 150 10b13 M41
l2 pre slf ygn af 7.92(13.2x11.3x6.8)tp 150 10b13 M41
       l1 pre ov gn au 9.55(14.9x11.3x8.3)tp 200 10b14 N16
l1 pre ov gn au 9.55(14.9x11.3x8.3)tp 200 10b14 N16
  l1 pre mq ltgn mal 8.12(21x10x7)tp 160 10b14 NC8
l1 pre mq ltgn mal 8.12(21x10x7)tp 160 10b14 NC8
      l1 pre pr ygn mal 8.10(16.5x11.7x7.7)tp 160 10b14 M25
l1 pre pr ygn mal 8.10(16.5x11.7x7.7)tp 160 10b14 M25
     l2 pre fntr ltgn mal 7.16(16.8x11.6x6.8)tp 150 10b14 C11
l2 pre fntr ltgn mal 7.16(16.8x11.6x6.8)tp 150 10b14 C11
           
s pre tr plgn mal 1.32(7.3x7.3x4.6)ec 50 10b14 N14
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