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 11, 2010

QUARTZ- ROCK CRYSTAL, ROSE, LEMON, SMOKY, GREEN, BLUE.

Quartz (after a Slavic word for “hard”) is the name give for a family of minerals of the same chemical composition(SiO2) and similar physical properties. Their are subdivided in two sub-groups. 
The first is macrocrystalline quartz (crystals recognizable with the eye) includes varieties such as amethyst, citrine, ametrine, and those mentioned in the title above. Quartz are found throughout the world

Rock crystal is the named given to transparent colourless variety of quartz, one of the most common mineral on earth.
e1 qt ov wh 169.10(43.5x31.5x21.5)c 1k wb1 L80
e1 qt ov wh 169.10(43.5x31.5x21.5)c 1k wb1 L80
    h1a qt ovcb wh 21.08(20.7x12.5x10)c 210 9b49 N42
h1a qt ovcb wh 21.08(20.7x12.5x10)c 210 9b49 N42
h1 qt cucb wh 28.76(23.9x14.7x11.6)c 300 9b48 N41
h1 qt cucb wh 28.76(23.9x14.7x11.6)c 300 9b48 N41
  h1 qt ovcb wh 23.48(22.9x13.7x11.3)ec 250 9b48 N42
h1 qt ovcb wh 23.48(22.9x13.7x11.3)ec 250 9b48 N42

Rose Quartz is the pink or peach-coloured quartz, usually used in decorative carvings.
 e qt ros ovc pkros af 72.90(27x23x17)cu 400 wb2 L23
e qt ros ovc pkros af 72.90(27x23x17)cu 400 wb2 L23
   g qt ros fndr pk af 39.68(29x21x8.8)tp 300 9b50 C5
ga qt ros ovc pk 32.73(26x19x10)c 200 10b49 N15
    ga qt ros ovc pk 32.73(26x19x10)c 200 10b49 N15
ga qt ros ovc pk 32.73(26x19x10)c 200 10b49 N15
   
h1 qt ros prc pk br 23.85(23.5x18x10.7)ec 150 10b50 N18
    h1a qt ros ovc pk 22.42(20x17.1x10.3)c 150 10b49
h1a qt ros ovc pk 22.42(20x17.1x10.3)c 150 10b49
      h2 qt st rnc rospk br 17.43(15x11)c 200 10b49 T18
h2 qt st rnc rospk br 17.43(15x11)c 200 10b49 T18

         h6 qt ros htc pk 12.47(16.3x16.2x7.5)c 130 10b50 N11
h6 qt ros htc pk 12.47(16.3x16.2x7.5)c 130 10b50 N11
 l1 qt ros cu pk af 9.62(16x12x7.5)c 250 9b50 T42
l1 qt ros cu pk af 9.62(16x12x7.5)c 250 9b50 T42
   
     l qt ros ov pk ma 5.07(14.2x10.2x6.1)ec 150 9b50 N20
l qt ros ov pk ma 5.07(14.2x10.2x6.1)ec 150 9b50 N20
      m1 qt ros em pk ma 4.99(13.2x9.1x5.3)ec 150 9b50 N33
m1 qt ros em pk ma 4.99(13.2x9.1x5.3)ec 150 9b50 N33

Lemon Quartz is generally given to the lemon-yellow coloured stones.
 e qt em y 99.32(31x24x16.6)c 1k wb2 N102
e qt em y 99.32(31x24x16.6)c 1k wb2 N102
   ea qt prcb musy 68.51(25x32x16.8)c 680 wb1 N73
ea qt prcb musy 68.51(25x32x16.8)c 680 wb1 N73
g1a qt fncb ylm 40.77(29.2x16.9x12.7)c 400 9b44 N41
g1a qt fncb ylm 40.77(29.2x16.9x12.7)c 400 9b44 N41
  
h1a qt emcb ylm 29.86(21.2x11.2x11.1)c 300 9b44 N40

h1a qt emcb ylm 29.86(21.2x11.2x11.1)c 300 9b44 N40
  
g1b qt ov ylm 40.26(24x17.3x15.5)c 400 10b N56g1b qt ov ylm 40.26(24x17.3x15.5)c 400 10b N56
    g qt pr ylm 39.86(23.4x23.1x15.8)c 400 10b N47
g qt pr ylm 39.86(23.4x23.1x15.8)c 400 10b N47
h1b1 qt pr ylm 28.54(23.5x20.3x12.5)c 290 9b43 N54
h1b1 qt pr ylm 28.54(23.5x20.3x12.5)c 290 9b43 N54
  h1d qt pr lmy 21.70(18.5x18.1x12.5)c 220 9b45 N39
h1d qt pr lmy 21.70(18.5x18.1x12.5)c 220 9b45 N39
 
     h1c qt cucb lm 23.09(19.5x16.2x11.6)c 230 9b42 N27
h1c qt cucb lm 23.09(19.5x16.2x11.6)c 230 9b42 N27
    h2 qt emfncb ylm 15.39(18.9x12x10)c 220 9b43 N62
h2 qt emfncb ylm 15.39(18.9x12x10)c 220 9b43 N62
       h3 qt hx chlm 14.45(16.5x14.5x11.5)c 180 9b32 N17
h3 qt hx chlm 14.45(16.5x14.5x11.5)c 180 9b32 N17
    h4 qt ovcb ylm 13.72((16.5x14.6x10)c 200 9b43 N489 
h4 qt ovcb ylm 13.72((16.5x14.6x10)c 200 9b43 N489
      
       l qt sq lm 5.73(11x7.3)c 100 9b32 N21
l qt sq lm 5.73(11x7.3)c 100 9b32 N21
  
   h1b qt mq lmy 28.06(27x16.3x10.8)c 280 9b45 N23
h1b qt mq lmy 28.06(27x16.3x10.8)c 280 9b45 N23
   h5 qt fnpn lmy 12.15(18.5x17.5x9.7)cu 150 9b32 N15
h5 qt fnpn lmy 12.15(18.5x17.5x9.7)cu 150 9b32 N15     


Smoky Quartz is given to brown and smoky gray stones


e1 qtsm ov ltbz 110.65(39.7x29.4x16.1)cu 550 wb2 L31
e1 qtsm ov ltbz 110.65(39.7x29.4x16.1)cu 550 wb2 L31
  
 e qtst rn lm br 82.57(28x25x16.2)tpu 420 wb3 N19
e qtst rn lm br 82.57(28x25x16.2)tpu 420 wb3 N19
 g1 qtsm pr y 43.24(30x29x13.6)ec 430 9b41 N24g1 qtsm pr y 43.24(30x29x13.6)ec 430 9b41 N24
  
ga qt ov smbn 32.50(25x19.3x11.6)c 320 9b42 M37
g1 qtsm pr y 43.24(30x29x13.6)ec 430 9b41 N24

Green quartz, Blue quartz
g qt cv skgn af 34.77(31x19.5x7.1)vsi 175 10b45 L8      
      g qt rn spmosgn 6ptst 34.55(25x7.1)tl 200 10b46 M40
g qt rn spmosgn 6ptst 34.55(25x7.1)tl 200 10b46 M40
       h qt em ggn 11.36(16.9x11x8)cir 200 9b29 N16
h qt em ggn 11.36(16.9x11x8)cir 200 9b29 N16
        h qt ra ggn 10.69(12.9x12.6x9.7)cir 200 9b29 N10
h qt ra ggn 10.69(12.9x12.6x9.7)cir 200  9b29 N10
          l qt ce ovc gn ru 5.56(12.2x10.1x6.1)tlu 200 10b46 N12
l qt ce ovc gn ru 5.56(12.2x10.1x6.1)tlu 200 10b46 N12
       
m2 qt tr bl th 3.50(8.5x3.5)ec 150 RN5
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