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Sapphire Faceted Roundel

Sapphire Faceted Roundel

定價 $40.00 USD
定價 售價 $40.00 USD
特價 售罄
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  • Grandarite  Faceted Round.
  • Size 4mm.
  • Length 14''
  • Grade 3A
  • Grandidierites appear bluer in color the more iron (Fe) they contain. A recently discovered gemstone, blue ominelite, is the Fe-analogue grandidierite Grandidierites display strong trichroic pleochroism. That means that it can show three different colors depending on the viewing angle: dark blue-green, colorless (sometimes a very light yellow), or dark green.

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