Large Spodumene Kunzite Hiddenite Triphane Crystal 422 Carat 86x27x18 mm

Description

Natural untreated Spodumene (Kunzite, Hiddenite, Triphane) Crystal Stone from Afghanistan   Weight: 84.4 gram = 422 carat
Dimensions: 86x27x18 mm
*** Spodumene 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.
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Large Spodumene Kunzite Hiddenite Triphane Crystal 422 Carat 86x27x18 mm
Natural untreated
Spodumene (Kunzite, Hiddenite, Triphane) Crystal Stone
from Afghanistan
Weight: 84.4 gram = 422 carat
Dimensions: 86x27x18 mm
***
Spodumene
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
Chemical Classification
silicate
Color
White, gray, yellow, green, blue, lilac, pink, brown. Sometimes pleochroic
Streak
White, colorless.
Luster
Vitreous, pearly.
Diaphaneity
transparent to translucent
Cleavage
perfect in two directions with parting
Mohs Hardness
6.5 to 7
Specific Gravity
3.1 to 3.3
Diagnostic Properties
Prismatic crystals with strong striations parallel to their principal axis. Perfect cleavage.
Chemical Composition
LiAl(SiO3)2
Crystal System
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.
Kunzite
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.
Hiddenite
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.
Triphane
Yellow and clear specimens of spodumene are known as "Triphane". They have also been cut into gems.
Item Specifics
Shape
Rough
Natural/Lab-Created
Natural
Depth
18
Length
86
Country of Origin
Afghanistan
Width
27
Brand
Unbranded
Modified Item
No
Country/Region of Manufacture
Afghanistan
Total Carat Weight (TCW)
422
Transparency
Translucent
Treatment
None (No Enhancement)
Cut Grade
Very Good
Gemstone
Kunzite
Payment
Payment: By Paypal
Shipping cost
Free shipping cost.
We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery.
We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery.
Return policy
Returns: We accept returns with any reason in 30 days. Buyer will bear the return shipping cost.
Messages
We will answer messages in 24 hours during working days.
[ Policy
: This is the contents of your policies. You can add a banner for this policy as header and add text descriptions here. The text descriptions can be different Font Size, Font Color, Style and even graphics and icons are also accepted. ]
Allaboutlearning
Your best online business partner
Large Spodumene Kunzite Hiddenite Triphane Crystal 422 Carat 86x27x18 mm
Natural untreated
Spodumene (Kunzite, Hiddenite, Triphane) Crystal Stone
from Afghanistan
Weight: 84.4 gram = 422 carat
Dimensions: 86x27x18 mm
***
Spodumene
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
Chemical Classification
silicate
Color
White, gray, yellow, green, blue, lilac, pink, brown. Sometimes pleochroic
Streak
White, colorless.
Luster
Vitreous, pearly.
Diaphaneity
transparent to translucent
Cleavage
perfect in two directions with parting
Mohs Hardness
6.5 to 7
Specific Gravity
3.1 to 3.3
Diagnostic Properties
Prismatic crystals with strong striations parallel to their principal axis. Perfect cleavage.
Chemical Composition
LiAl(SiO3)2
Crystal System
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.
Kunzite
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.
Hiddenite
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.
Triphane
Yellow and clear specimens of spodumene are known as "Triphane". They have also been cut into gems.
Item Specifics
Shape :
Rough
Natural/Lab-Created :
Natural
Depth :
18
Length :
86
Country of Origin :
Afghanistan
Width :
27
Brand :
Unbranded
Modified Item :
No
Country/Region of Manufacture :
Afghanistan
Total Carat Weight (TCW) :
422
Transparency :
Translucent
Treatment :
None (No Enhancement)
Cut Grade :
Very Good
Gemstone :
Kunzite
Payment
Payment: By Paypal
Shipping cost
Free shipping cost.
We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery.
We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery.
Return policy
Returns: We accept returns with any reason in 30 days. Buyer will bear the return shipping cost.
Messages
We will answer messages in 24 hours during working days.
[ Policy
: This is the contents of your policies. You can add a banner for this policy as header and add text descriptions here. The text descriptions can be different Font Size, Font Color, Style and even graphics and icons are also accepted. ]
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