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33.95 Carats Natural Rare ~ Grandidierite Cabochons
- 存货单位
- 尺寸(毫米)
- 12.000 x 9.000 x 6.000mm
- 重量 (cts)
- 33.950
- Treatment
- No Treatment
- 颜色
-
Grandidierites appear bluer in color the more iron (Fe) they contain. A recently discovered gemstone, blue ominelite is the Fe-analogue (Fe, Mg) to grandidierite (Mg, Fe).[4]
Grandidierites display strong trichroic pleochroism. That means they can show three different colors depending on the viewing angle: dark blue-green, colorless (sometimes a very light yellow), or dark green.
While trichroism can usually help distinguish grandidierites from other gems, lazulites can occur with blue-green colors and show colorless/blue/dark blue pleochroism. Nevertheless, lazulites have somewhat higher refractive indices and specific gravity. Grandidierites also have greater hardness.
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- 存货单位
- 尺寸(毫米)
- 12.000 x 9.000 x 6.000 mm
- 重量 (cts)
- 33.950
- Treatment
- No Treatment
- 颜色
-
Grandidierites appear bluer in color the more iron (Fe) they contain. A recently discovered gemstone, blue ominelite is the Fe-analogue (Fe, Mg) to grandidierite (Mg, Fe).[4]
Grandidierites display strong trichroic pleochroism. That means they can show three different colors depending on the viewing angle: dark blue-green, colorless (sometimes a very light yellow), or dark green.
While trichroism can usually help distinguish grandidierites from other gems, lazulites can occur with blue-green colors and show colorless/blue/dark blue pleochroism. Nevertheless, lazulites have somewhat higher refractive indices and specific gravity. Grandidierites also have greater hardness.
Paypal Accepted
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DHL 对包含 2 或更多商品的订单折扣为 $60.00
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