Spodumene Kunzite Hiddenite Triphane Crystal 185 Carat 70 X 29 X 11 Mm
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Spodumene Kunzite Hiddenite Triphane Crystal 185 Carat 70 X 29 X 11 Mm:
Spodumene (Kunzite, Hiddenite, Triphane) Crystal - 185 Carat (70 x 29 x 11 mm)
Natural untreated Spodumene (Kunzite, Hiddenite, Triphane) Crystal Stone from Afghanistan
Weight: 37 gram = 185 carat
Dimensions: 70x29x11 mm
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Spodumene is a pyroxene mineral that is found, almost exclusively, in granite pegmatites. It has a chemical composition of LiAlSi2O6 but small amounts of sodium sometimes substitute for lithium. Spodumene is typically found in lithium-rich pegmatites in association with other lithium minerals such as lepidolite, eucryptite and petalite.
Spodumene often occurs in extremely large crystals.
Physical Properties of Spodumene
White, gray, yellow, green, blue, lilac, pink, brown. Sometimes pleochroic
transparent to translucent
perfect in two directions with parting
6.5 to 7
3.1 to 3.3
Prismatic crystals with strong striations parallel to their principal axis. Perfect cleavage.
monoclinic (low temperature) tetragonal (high temperature)
Spodumene sometimes occurs in transparent crystals in pastel shades of pink, green and yellow. These have been cut into gemstones that are prized by collectors. However, their use in jewelry is limited to pieces that will be subject to limited abuse because of spodumene's perfect cleavage.
Translucent to transparent spodumene with an attractive pink, yellow or green color is sometimes faceted, cut en cabochon or used to make tumbled stones. Its perfect cleavage limits its use to jewelry that will not be subject to rough wear or handling. Spodumene is primarily a "collector's gemstone."
Source localities include Afghanistan, Australia, Brazil, Madagascar, Pakistan, Canada and USA.
Pink to lilac specimens of gem-quality spodumene are highly prized and known as "kunzite". The color of these specimens is attributed to the presence of manganese as a chromophore. Kunzite is the most commonly encountered spodumene gem.
Emerald green spodumene is known as "Hiddenite." Its vivid green color is very similar to emerald and is attributed to the presence of chromium as a chromophore. It is the rarest gem variety of spodumene.
Yellow and clear specimens of spodumene are known as "Triphane". They have also been cut into gems.
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We send the goods to USA buyers by E-express, a kind of postal express service set up by with USPS and Hong Kong Post. It usually takes about 6 to 10 working days(depends on proximity to USPS international hubs) for delivery in USA.
We send the goods to other countries by registered airmail through Hong Kong Post. It usually takes about 12 to 18 working days for delivery, and it may take a bit longer to Central and South America.
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