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Natural Ethiopian Opal Faceted Cut 3mm Round 25 Pieces Lot Multi Fire Opal Loose Gemstone Wholesale Lot
Natural Ethiopian Opal Faceted Cut ..
Natural Ethiopian Welo opal Calibrated Size 3mm Faceted Cut Round Multi Fire Opal Loose Gemstone Wholesale Lot For sale
Gemstone Name: Ethiopian Opal
Quantity :- 25 Pieces Lot
Cut:- Faceted Cut
Size:- 3mm
Shape:-Round
Quality : Top Quality
Type:- Natural gemstone
Clarity:- Translucent
Quality: Top Quality
Color:- Multi Color
Hardness :-6.5 To 7
Opal consist 3% - 21 % water, it comes in the category of mineraloid. In the early 1990s a new type of opal surfaced in Ethiopia, which was brown material in nodule. During year 2008 opal from Wollo was discovered. Ethiopian fire opals have striking pattern formations which make each opal unique. Some opals have diverse play of colors from Neon reds, oranges, green, blue, white, yellow, brown and a fire color. Some Ethiopian opal has points displaying spectral colors. There are also some "rainbow" opals, where each patches of play-of-color display the entire rainbow of spectral colors. Some Ethiopian opal has digit patterns, others has fossilized plants in them.
Mohs hardness 5.5 - 6.5
Synthetic Opal:-
Synthetic opal: RI 1.440 - 1.450; opt. isotropic; SG 1.74 - 2.07; Colours: colourless, white, black, red; Play of colour: red, orange, yellow, green, blue, violet; Transparent to opaque; Hardness 5.5 - 6.5. Clearly separated colour patches, "lizard-skin effect", columnar structure perpendicular to the "lizard-skin effect" - Gemmological Tables, Ulrich Henn and Claudio C. Milisenda, 2004, p 1
Significant Gem Localities:- Basically From Ethopia but also from other place Australia, Brazil, Canada, Indonesia, Mexico, Peru, USA.
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