Reference: OPU15F
Product name: Natural Opal, Shape: Oval, Color: White, Stone size: 9.00x7.00 mm, Weight: 1.05 carats, Stone clarity: Opaque without visible inclusions, Iridescence: Strong, Origin: Ethiopia
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Opal (from Latin opalus which probably comes from Sanskrit upalus = "precious stone") is an exceptional mineral that is only amorphous, being a hydrated silicate with the chemical formula SiO2*nH2O.
As the percentage of water can reach 25% as an amorphous solid body, the opal appears like glass without having a crystalline structure.
The mineral frequently appears in nature as the filling of a vein, or as granules. Opals are very rare, so they are not exploited industrially. Opal has been found on all continents but 97% of opals come from Coober Pedy, South Australia.
Not long ago, significant opal deposits were discovered in the Welo region of Ethiopia
The color of the mineral is very variable, from colorless to grey, red, brown, yellow, rarely due to some impurities, orange or reddish copper (called "fire opals").
The variant of "wood opal" is formed by the phenomenon of impregnating wood with silicates
Hydrophane or "water opal" exhibits a play of light colors similar to water.
Opal in Roman culture was considered the "stone of love" or the "stone of hope".
Data sheet
Product name: Natural Opal, Shape: Oval, Color: White, Stone size: 9.00x7.00 mm, Weight: 1.05 carats, Stone clarity: Opaque without visible inclusions, Iridescence: Strong, Origin: Ethiopia
Product: Natural Opal, Shape: Oval caboson, Color: White Yellow, Size: 6.00x4.00 mm, Weight: 0.25 carat, Clarity: No visible inclusions, Treatment: Untreated, Origin: Ethiopia
Product name: Natural Tourmaline, Shape: Oval, Color: Brown, Stone size: 5.90x5.40 mm, Weight: 0.90 carats, Stone clarity: No visible inclusions, Treatment: Untreated, Origin: Sri Lanka
Product name: Natural Topaz, Shape: Round, Color: White, Size: 2.40 - 2.50 mm, Weight: 0.07 carat, Clarity: No visible inclusions, Treatment: Untreated, Origin: Brazil
Stone type: Natural Topaz, Shape: Round, Colour: White, Stone size mm: 5.90 - 6.00, Weight carat: 0.95 - 1.10, Stone Clarity: Eye clean
Product: Natural cultured pearl, Shape: Round, Color: White, Size mm: 8.10, Weight grams: 0.60, Pearl type: Button, Processing: Semi-drilled, Symmetry: Irregular
Stone type: Natural Peridot, Shape: Round, Color: Light green, Weight carat: 0.02, Treatment: Untreated, Source: Pakistan, Stone Clarity: Eye clean, Stone size mm: 1.40, Sale information: Price by piece
Product Name: Natural Chrysoberyl, Shape: Oval, Color: Yellow Green, Size: 5.60x4.50 mm, Weight: 0.55 carat, Clarity: No visible inclusions, Treatment: Untreated, Origin: Sri Lanka
Product name: Natural Opal, Shape: Oval cabochon, Color: White, Size: 16.80x9.80 mm, Weight: 5.05 carats, Clarity: No visible inclusions, Treatment: Untreated, Iridescence: Strong, Origin: Ethiopia
Product name: Natural Tourmaline, Shape: Wand, Color: Green, Stone dimensions mm: 15.00x3.90x3.00, Stone Carat Weight: 1.80, Stone clarity: No visible inclusions, Origin: Pakistan
Stone type: Natural Peridot, Shape: Octagon, Colour: Green, Stone size mm: 7.20x7.20x4.30, Weight carat: 1.85, Stone Clarity: Eye clean
Stone type: Natural Topaz, Shape: Princess, Color: Blue, Weight carat: 0.35 - 0.45, Treatment: Improvement treatment, Source: Brazil, Stone Clarity: Eye clean, Stone size mm: 3.80x3.80 - 4.10x4.00, Sale information: Price by piece
Product: Natural Spinel, Shape: Oval, Color: Dark Blue, Size: 6.60x5.10 mm, Weight: 1.00 carat, Clarity: No visible inclusions, Treatment: Untreated, Origin: Sri Lanka
Product name: Natural Spinel, Shape: Cushion, Color: Dark Mauve, Size: 7.10x6.10 mm, Weight: 1.15 carats, Clarity: No visible inclusions, Treatment: Untreated, Origin: Sri Lanka
Product: Natural Topaz, Shape: Round, Color: Sky Blue, Size: 6.20 mm, Weight: 1.00 carat, Clarity: No visible inclusions, Treatment: Treated, Origin: Brazil
