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!

Wednesday, January 13, 2010

IOLITE – WATER “SAPPHIRE”

Iolite (also known as Cordierite or Dichroite) has been called “water sapphire” because of its similarity to blue sapphire when cut, though the name comes from Greek, meaning violet. Inclusions of hematite and goethite somestimes cause reddish sheen. Iolite can be recognised by its strong pleochroism, which gives the gems its other name of dichroite. It is a hard stone (7 MOH) with a greasy vitreous lustre and suitable for jewellery. Gem quality is found in alluvial deposits as small, transparent, waterworn pebbles in Sri Lanka, Burma, Madagascar and India.

My iolite collection consists of pieces cut en cabochon, a cat’s eye, faceted stones and carvings
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g io prc mdpp ma 33.82(21.9x20x12.5)si 05 6b32 L52 
g io prc mdpp ma 33.82(21.9x20x12.5)si 05 6b32 L52  


   h io ce rnc smvi ta 12.46(13.1x10.3)tlu 250 8b21 N20
h io ce rnc smvi ta 12.46(13.1x10.3)tlu 250 8b21 N20
    l1 io ovc dppp af 9.62(17x11.4x6.8)op 150 8b21 N5 l1 io ovc dppp af 9.62(17x11.4x6.8)op 150 8b21 N5
      l2 io ovc v 7.09(13.2x11.1x7.1)si 200 8b21 E47
l2 io ovc v 7.09(13.2x11.1x7.1)si 200 8b21 E47
         m2 io ovc sltbl 3.12(10.3x8.2x5.3)si 100 8b21 M10
m2 io ovc sltbl 3.12(10.3x8.2x5.3)si 100 8b21 M10
           m3 io ovc dppbl 2.68(9.4x8.4)u 100 8b21 M10
m3 io ovc dppbl 2.68(9.4x8.4)u 100 8b21 M10
      l3 io ov roypp ma 6.30(14.1x10.1x7.7)si 350 8b21 E75  
l3 io ov roypp ma 6.30(14.1x10.1x7.7)si 350 8b21 E75
       m1 io ov dpbl 4.03(14x10.2x5)si 200 8b21 M13
m1 io ov dpbl 4.03(14x10.2x5)si 200 8b21 M13
    m3 io mq vibl 2.43(15x7.1x5.1)ec 125 8b21 N19
m3 io mq vibl 2.43(15x7.1x5.1)ec 125 8b21 N19
        s1 io em vbl 1.75(8x6x5)ec 85 8b21 NC2 
s1 io em vbl 1.75(8x6x5)ec 85 8b21 NC2    
         s1 io rn vibl in 1.51(8x5)ecu 75 8b21 N10
s1 io rn vibl in 1.51(8x5)ecu 75 8b21 N10
  
        vs io ovf vbl 0.93(8x6)ec 50 8b21 N12
vs io ovf vbl 0.93(8x6)ec 50 8b21 N12
h1 io cv ppbl 17.70(22x13x8)c 180 7b39 N23
h1 io cv ppbl 17.70(22x13x8)c 180 7b39 N23
 h io lf rosrd 11.26(30x19x4.7) 150 7b39 M21
h io lf rosrd 11.26(30x19x4.7) 150 7b39 M21


l1 io lf dppp 8.44(30x13x3.2) 125 7b39 M14
l1 io lf dppp 8.44(30x13x3.2) 125 7b39 M14
     l io cv pp 5.79(26.5x6.5x4.5)c 100 7b39 C6
l io cv pp 5.79(26.5x6.5x4.5)c 100 7b39 C6
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