Nature & Science
https://stores.ebay.com/Gao-Fu-Collectibles
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Gem Grade Black Tourmaline from Afghanistan (0.2 to 5 g size complete pieces) - 100 gram Lot
Small pieces - 100 gram lot (0.22 pound = 3.5 ounce)
Size: 2 to 5 gram each piece (10 to 25 carat)
Dimension: 8x4x3 mm to 28x8x6 mm (0.3x0.2x0.1 to 1.1x0.3x0.2 inch)
About 20 to 40 pieces in one lot.
The pictures in the listing are just for reference as we are selling multiple pieces with same pictures.
***
Tourmaline
Color: Colorless, pink, brown, red, yellow, green, blue, black, violet, multi-colored
Moh's Harness: 7-7½
Specific Gravity: 2.82-3.32
Refractive Index: 1.614-1.666
Double Refraction: -0.014 to -0.032
Fluorescence: Weak or none
Cleavage: Indistinct
Fracture: Uneven, small conchoidal, brittle
Crystal System: Trigonal. Long crystals with triangular cross section and round sides.
Tourmaline's name comes from the Sinhalese word "turmali," which means "mixed." Tourmaline, occurring in more colors and combinations of colors than any other gemstone variety, lives up to its name. The many different colors or Tourmaline mean that this stone can easily be mistaken for just about any other gemstone.
One of the most versatile of gemstones, tourmaline is available in every color, from colorless to black. You can find every tone from pastel to dark, and even with one or more colors appearing in the same stone. It truly is a wondrous and fascinating stone!
Known for centuries, tourmaline first gained popularity when the Dutch began to import it in the early 17th century from Sri Lanka .
Color is the major characteristic for tourmaline. This stone is found in more hues, shades and nuances than any other gem. Here are some of the most common varieties that are recognized in the gem trade.
Tourmaline has strong pleochroism , which means you can see different colors or depths of color when viewed at different angles, such as when you rotate the stone in the light.
| Item Specifics | |
|---|---|
| Country/Region of Manufacture | Afghanistan |
| Modified Item | No |
| Gemstone Type | Tourmaline |
| Brand | Unbranded |
| Country of Origin | Afghanistan |
| Cut Grade | Good |
| Gemstone Clarity Grade | Eye Clean |
| Gemstone Color | Black |
| Gemstone Creation | Natural |
| Gemstone Form | Rough |
| Gemstone Treatment | Not Enhanced |
| Transparency | Opaque |
Payment: By Paypal
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.
Returns: We accept returns with any reason in 30 days.
We will answer buyer messages within 24 hours during working days.
Nature & Science
https://stores.ebay.com/Gao-Fu-Collectibles
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Gem Grade Black Tourmaline 2 to 5 g size complete pieces 100 gram Lot
Gem Grade Black Tourmaline from Afghanistan (0.2 to 5 g size complete pieces) - 100 gram Lot
Small pieces - 100 gram lot (0.22 pound = 3.5 ounce)
Size: 2 to 5 gram each piece (10 to 25 carat)
Dimension: 8x4x3 mm to 28x8x6 mm (0.3x0.2x0.1 to 1.1x0.3x0.2 inch)
The pictures in the listing are just for reference as we are selling multiple pieces with same pictures.
*** Tourmaline Color: Colorless, pink, brown, red, yellow, green, blue, black, violet, multi-colored Moh's Harness: 7-7½ Specific Gravity: 2.82-3.32 Refractive Index: 1.614-1.666 Double Refraction: -0.014 to -0.032 Fluorescence: Weak or none Cleavage: Indistinct Fracture: Uneven, small conchoidal, brittle Crystal System: Trigonal. Long crystals with triangular cross section and round sides. Tourmaline's name comes from the Sinhalese word "turmali," which means "mixed." Tourmaline, occurring in more colors and combinations of colors than any other gemstone variety, lives up to its name. The many different colors or Tourmaline mean that this stone can easily be mistaken for just about any other gemstone. One of the most versatile of gemstones, tourmaline is available in every color, from colorless to black. You can find every tone from pastel to dark, and even with one or more colors appearing in the same stone. It truly is a wondrous and fascinating stone! Known for centuries, tourmaline first gained popularity when the Dutch began to import it in the early 17th century from Sri Lanka . Color is the major characteristic for tourmaline. This stone is found in more hues, shades and nuances than any other gem. Here are some of the most common varieties that are recognized in the gem trade. Tourmaline has strong pleochroism , which means you can see different colors or depths of color when viewed at different angles, such as when you rotate the stone in the light. 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. Messages
We will answer buyer messages within 24 hours during working days. Copy rights of https://stores.ebay.com/Gao-Fu-Collectibles. All right reserved. |
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