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$24.00
Current Bid
13
Bids
Closed
29/09/2017 11:10 am
13
610
9

GiL Certified 1.10 ct Sphene Color Change SKU.1

SKU
Dimensions (mm)
8.710 x 5.100 x 3.710mm
Weight (cts)
1.100
Certified Gemstones
Yes
Treatment
No Treatment
Type
Faceted
Colours

General Info:

A brilliantly transparent gem, sphene has fire greater than that of diamond! This gem is named from the Greek word for “wedge,” as its crystals are typically wedge shaped, but may be referred to by its mineral name, titanite. Another characteristic sphene possesses is birefringence, or double refraction, meaning that light splits into two rays as it passes through the gem. As a result, the back facets appear as double images, giving the gem a soft, hazy appearance, similar to the doubling seen in zircon.

Classification

  • Common Name: Sphene
  • Species Sphene
  • Variety
  • Colors Yellow, Green, Brown, Orange, Red
  • Alternate Names: Titanite, Chrome Sphene
  • Gemstone Groups
  • Key Separations: OTL RI reading, very strong eye visible doubling, possibly spectra
  • Comments Chrome sphene is intense green in color.

Sphene Chemistry and Crystallography:

  • Chemical Name: Calcium titanium silicate
  • Chemical Formula: CaTiSiO5
  • Synthesis
  • Crystal System: Monoclinic
  • Classification Silicate
  • Nature Natural
  • Crystallinity Crystalline

Sphene Physical properties:

  • Hardness 5-5.5
  • Streak White
  • Specific Gravity: 3.5-3.54 Typical:3.52
  • Toughness Varies
  • Inclusions Sphene occasionally contain tiny crystals that aline in straight rows or “feathers”, natural inclusions, actinolite needles and twinning is common. Stones have strong dispersion and eye-visible doubling.
  • Luster SubAdamantine
  • Stability
  • Fracture Conchoidal, Splintery
  • Cleavage Good, in one direction

Item Specifics:

  • ORIGIN TANZANIA
  • TREATMENT NONE 100% NATURAL
  • COLOR GREEN MULTICOLOR SPARKLE

Feel free to to “make an offer” on our other items :)

We Accept Payments through

  • Paypal
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  • Credit Cards

Shipping provider Shipping to Thailand Shipping to rest of world
FedEx $35.00 / 2 days $35.00 / 5 days
Thailand
FedEx is discounted to $35.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $35.00 on orders with 2 or more items
Express Shipping $55.00 / 2 days $55.00 / 5 days
Thailand
Express Shipping is discounted to $55.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $55.00 on orders with 2 or more items
Registered Shipping $10.00 / 7 days $10.00 / 21 days
Thailand
Registered Shipping is discounted to $10.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $10.00 on orders with 2 or more items

zayangems
zayangems
Discover the brilliance of rare gemstones with Zayan Gems. Zayan Gems is a company that has been in the gemstone industry for 15 years, operating from Pakistan, Thailand, and Australia. They specialize in wholesaling both semi-precious and precious gemstones, in both cut and polished forms as well as rough specimens. The gemstones they source are exclusively from around the world, with a focus on Africa, Pakistan, Tajikstan, Afghanistan, and Kashmir. These areas are known for their high-quality gemstones and limited access, which allows Zayan Gems to offer their customers stones of "high to finest" quality at very attractive prices. The company's ties to these important mining and market environments are what sets them apart and allows them to offer such exceptional gemstones to their customers.
Bangrak, Thailand
Verified
8054 Feedback

  • royz60
    royz60
    Positive

    Beautiful stone fast shipping will purchase from again thank you

  • botanboko
    botanboko
    Positive

    I received the stone safely. Thank you for always making beautiful stones available for purchase.

  • bgan
    bgan
    Positive

    Nice stone, fast shipping, would buy again.

  • didetcat
    didetcat
    Positive

    superb stone. everything is perfect. THANKS !!

Bids History (13)
royz60
Purchased from this seller previously
6 years ago
$23.00
6 years ago
Automated Bid
$22.00
6 years ago
$21.00
jonfrmr
Purchased from this seller previously
6 years ago
Automated Bid
$20.00
jonfrmr
Purchased from this seller previously
6 years ago
Automated Bid
$19.00
6 years ago
$18.00
jonfrmr
Purchased from this seller previously
6 years ago
Automated Bid
$17.00
6 years ago
$16.00
jonfrmr
Purchased from this seller previously
6 years ago
Automated Bid
$15.00
6 years ago
$14.00
jonfrmr
Purchased from this seller previously
6 years ago
Automated Bid
$13.00
6 years ago
$12.00
jonfrmr
Purchased from this seller previously
6 years ago
$1.00

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Shipping Details

Shipping:
$35.00 5 days via FedEx
Ships from:
Thailand

Payment Options

  • paypal
  • stripe
  • escrow
  • gempay

Overview

Listing Type : Standard
Product ID : 665440
Estimated RRP : $132.00
Starting Bid : $1
Starts : 25th September 2017 04:12 am AEST
Ends : 30th September 2017 04:10 am AEST
* All prices are in USD