THE PREMIER MARKETPLACE FOR JEWELRY
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      $65.00 USD
      Price

      FIREY WELO OPAL SILVER RINGS 27.55 CTS SIZE 6 [SOJ56]

      3377
      10

      SKU
      Dimensions (mm)
      6.000 x 5.000 x 5.000mm
      Weight (g)
      5.510
      Ring Size
      6
      Colours

      WELO OPAL RING

      This is a natural untreated stone mined in Ethiopia and set in silver and ready to wear.There is a good display of fire from all directions.

      Stamped 925

      The workmanship is excellent

      Weight of silver and stone 27.55 cts[app]

      Size of stone 6 x 5 mm [app]

      Ring size 6 [USA]

      We recommened you dont wear the ring when gardneing or when washing.The stone is hydrophane so it will appear brighter in times of low humidity

      For polished stones and rough visit out sister site “VOLCANICOPALS”

       

      New Play-of-Color Opal from Welo, Ethiopia

      A new source of high-quality play-of-color opal was discovered in early 2008 in Welo Province, Ethiopia, about 500 km north of Addis Ababa. This deposit is geographically distinct from the Mezezo deposit in Shewa Province, which was discovered in the early 1990s (see, e.g., Spring 1994 Gem News, pp. 52–53).

      These contributors examined a parcel of about five rough and 30 cut Welo opals. The cabochons showed good play-of-color ; the vast majority were white and transparent, but some had a bodycolor varying from light yellow to dark “chocolate” brown. Compared to Mezezo opals (e.g., J.-P. Gauthier et al., “L’opale d’Ethiopie: Gemmologie ordinaire et caractéristiques exceptionnelles,” Revue de Gemmologie a.f.g., No. 149, 2004, pp. 15–23), those from the new deposit generally appear much whiter. We noted all spectral colors in the play-of-color in our samples. Most of the cabochons were similar in appearance to opals from Australia or Brazil. However, many samples displayed a columnar structure of play-of-color opal within common opal (figure 2), as first described in material from Mezezo (again, see Gauthier et al., 2004). This feature is only very rarely observed in opals from sources outside Ethiopia.

      The hydrostatic SG of the opals ranged from 1.80 to 2.10. This broad range is in part due to the high porosity of some samples, as revealed by a significant weight increase after immersion in water (up to 8%). Fluorescence varied from inert to moderate yellowish white to both long- and short-wave ultraviolet (UV) radiation. Samples that were inert displayed an unexpected greenish phosphorescence of moderate intensity. No luminescence was observed in the opals with a yellow-to-brown bodycolor, even the light ones; these darker bodycolors are probably due to the presence of iron, which quenches luminescence. The yellow-to-green luminescence is likely due to the presence of uranium (E. Gaillou et al., “The geochemistry of gem opals as evidence of their origin,” Ore Geology Reviews, Vol. 34, 2008, pp. 113–126). Fourier-transform Raman spectra were obtained for several samples using a Bruker RFS 100 spectrometer. All spectra were consistent with opal-CT, with Raman bands at about 1070, 780, 670, and 345 cm-1, and water-related bands at about 3200 and 2950 cm-1.

      Welo opal is found in volcanic rock, possibly a rhyolite. The rough samples we examined consisted of opal (either common or play-of-color) cementing fragments of the host rock. By contrast, opal from Mezezo fills cavities in rhyolite, forming nodules. Despite these differences, the fact that columnar structures are seen in opals from both deposits (but very rarely from elsewhere) seems to indicate similarities in the conditions of their formation.

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      sedajewelery
      sedajewelery
      Welcome to Seda Jewelry, where natural beauty meets exquisite craftsmanship. Led by Paul Sedawie, a distinguished member of the International Coloured Stone Association (ICA) and former president of the Opal Association, our store showcases a stunning collection of jewelry adorned with all-natural gemstones. With a passion for sourcing the finest gemstones from around the world, Paul ensures that each piece of jewelry in our collection is as unique as it is beautiful. From vibrant opals to dazzling diamonds, every gemstone is hand-selected for its exceptional quality and beauty. As a testament to our dedication to quality, all jewelry at Seda Jewelry comes with a money-back guarantee, providing you with peace of mind with every purchase. Explore our collection and discover the perfect piece to add a touch of natural elegance to your style.
      Mermaid Beach, Australia
      Verified
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      • sirdublin
        sirdublin
        Positive

        Looking forward to it! Thx!

      • helmrey
        helmrey
        Positive

        This is quite different than most bracelets. The picture does not do it justice. Good seller. Fast shipping

      • helmrey
        helmrey
        Positive

        These pendants that are hand painted are really neat...all are a bit different. My 3rd purchase. Good seller and fast shipping

      • helmrey
        helmrey
        Positive

        What a wonderful necklace. Quite stunning. Good seller and fast shipping

      • helmrey
        helmrey
        Positive

        Very nice pendant. Good seller

      10%
      Coupon code SEDADEAL
      Valid Until
      4th Mar 2025

      Shipping Details

      Shipping:
      $16.00 21 days via Registered Shipping
      Ships from:
      Australia

      Payment Options

      • paypal
      This seller adds 10.00% tax to transactions in Australia.

      Overview

      Listing Type : Standard
      Product ID : 58932
      Starts : 13th February 2025 05:37 pm PST
      * All prices are in USD