85ctw Ethiopia Peridot Rough Beautiful Cabbing/Specimen
85ctw埃塞俄比亞橄欖石粗糙美麗的Cabbing /標本
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尺寸(毫米) 16 x 8 x 5毫米
重量(克拉) 不提供
Certified Gemstone
85ct Ethiopian Peridot Rough Cabbing/Speci/WireWrapping

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Item Description
Description: Beautiful Ethiopia Peridot Rough. Cabbing/Collection Grade. 
Weight: 85ct
Size: 6x6x5-16x8x4mm
Type: Ethiopia Peridot Rough 
Shape: Natural Rough Shape
Color: Beautiful Green. 
Body Clarity: Tranlucent Crystal Base
Comment: Much more impressive in hand then the movie and pictures show. 
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Team Konjo Opals






Welo Opal

GIA Report on Welo Ethiopia Opals. 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).The cabochons showed good play-of-color (figure 1); 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.

Welcome to Konjo Opals, your source for the highest quality Ethiopian Opals, direct from the mines. We are a group of miners and master cutters that have been working with Welo Ethiopian Opals long before GIA recognized their discovery in 2008.

If your wondering what Konjo means it is the term the local miners of Welo Ethiopia use to refer to the best opals when they are found. Konjo = Best.

We currently attend many international gemstone shows specializing in Welo Ethiopian Opals, finished and rough. We take anywhere from 50,000 to 300,000 cts of finished opals and a minimum of 50 to 200 kilos of rough Welo Opals to shows. Some of the shows we attend as sellers are JCK Las Vegas, Hong Kong Gemstone Fair, Tucson Gemstone show. We are always at the opal mines weekly and every day new opals are being brought to our Ethiopia office by the miners that work with us.

All of the opals we display for sale here on Opal Auctions are hand selected for the rareness of patterns, top color play and rare sizes. Rest assured you are buying a true one of a kind opal when buying from us, we are not here to hype up our opals with fancy titles and terms like extreme or investment. We simply want to show you the high quality opals we can supply for unbeatable prices.

Our opals are graded on the following scale:

  • Bright 3/5 brightness
  • Very Bright 4-4.5/5 brightness
  • Brilliant 5/5 brightness
85ct埃塞俄比亞橄欖石粗糙的Cabbing / Speci / WireWrapping

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描述: 美麗的埃塞俄比亞橄欖石粗糙。 Cabbing / Collection Grade。
重量: 85ct
尺寸: 6x6x5-16x8x4mm
類型: 埃塞俄比亞橄欖石粗糙
形狀: 自然粗糙的形狀
顏色: 美麗的綠色。
身體清晰度: 半透明水晶底座
評論: 更令人印象深刻的是電影和圖片顯示。

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GIA關於Welo埃塞俄比亞蛋白石的報導。 2008年初,在埃塞俄比亞的Welo省,亞的斯亞貝巴以北約500公里處發現了一種新的高質量彩色蛋白石。該礦床在地理上不同於Shewa省的Mezezo礦床,該礦床於20世紀90年代初被發現(參見,例如,1994年春季寶石新聞,第52-53頁)。凸圓形寶石表現出良好的色彩搭配(圖1) ;絕大多數是白色和透明的,但有些的體色從淺黃色到深色的“巧克力”棕色。與Mezezo蛋白石相比(例如,J.-P.Gauthier等人,“L'opale d'Ethiopie:Gemmologie ordinaireetcaractéristiquesexnenelnelles”,Revue de Gemmologie afg,No。149,2004,pp.15-23),來自新存款的那些通常看起來更白。我們注意到樣品中所有顏色的光譜顏色。大多數凸圓形寶石的外觀與澳大利亞或巴西的蛋白石相似。然而,許多樣品在普通蛋白石中顯示出彩色蛋白石的柱狀結構(圖2),如Mezezo的材料中所述(再次參見Gauthier等,2004)。在埃塞俄比亞以外的來源的蛋白石中很少觀察到這一特徵。

蛋白石的靜水SG範圍為1.80至2.10。這個寬範圍部分是由於一些樣品的高孔隙率,如浸入水中後顯著的重量增加(高達8%)所顯示的。熒光從惰性到中等黃白色到長波和短波紫外(UV)輻射都變化。惰性樣品顯示出中等強度的意外綠色磷光。在具有黃色至棕色體色的蛋白石中沒有觀察到發光,即使是淺色的也是如此;這些較暗的體色可能是由於鐵的存在,這會熄滅發光。黃色至綠色的發光可能是由於鈾的存在(E. Gaillou等人,“地球化學的寶石蛋白石作為其起源的證據”,Ore Geology Reviews,Vol.34,2008,pp.113- 126)。使用Bruker RFS 100光譜儀獲得幾個樣品的傅里葉變換拉曼光譜。所有光譜均與蛋白石-CT一致,拉曼譜帶約為1070,780,670和345 cm-1,水相關譜帶約為3200和2950 cm-1。


歡迎來到Konjo Opals,您可以直接從礦山獲得最優質的埃塞俄比亞蛋白石。我們是一群礦工和大師,在GIA認可他們2008年的發現之前很久就與Welo Ethiopian Opals合作。

如果您想知道Konjo意味著什麼,那麼Welo埃塞俄比亞的當地礦工在找到它們時會用它們來指代最好的蛋白石。 Konjo =最好的。




  • 明亮的3/5亮度
  • 非常明亮的4-4.5 / 5亮度
  • 輝煌的5/5亮度
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