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$177.00 USD
Estimated RRP $354.00
Closed
30/08/2022 01:28 am

2.53 ct Sphene Color Change SKU.1

SKU
Dimensions (mm)
9.930 x 7.310 x 4.490mm
Weight (cts)
2.530
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

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COLOR: LIGHT GREEN (fluorescent Light)

                LIGHT BROWN (Natural Sunlight)

  

Shipping provider Shipping to Thailand Shipping to rest of world
FedEx $35.00 / 2 days $35.00 / 4 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 / 7 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

naturalspectragems
naturalspectragems
Natural Spectra Gems PTY LTD [NSG] a has been operating from Australia, Pakistan and Thailand for the last 11 years, wholesaling semi precious and precious gemstones both in cut/polished as well as rough/specimen, exclusively sourced from around the world and especially from Pakistan, Tajikstan, Afghanistan and Kashmir to which, as you would be aware, access is somewhat limited. Because of my ties to these important mining and market environs, the stones I source are of "high to finest" quality at very attractive prices. Please return the item if for some reasons you do not like the item. After one week we will not accept the return. Please follow our new arrivals on http://naturalspectragems.tumblr.com/ https://www.facebook.com/nsgems https://plus.google.com/NaturalSpectraGems
Bangrak, Thailand
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Audit

This product has been audited by a Gemstone Sheriff and they have found the following:
  • Description Accurate
  • Pictures Accurate

Comments

The Verified Seller has provided accurate and complete information for this gemstone including weight, dimensions and treatments where applicable.

This audit was requested 6 years ago
Last updated 6 years ago

Shipping Details

Shipping:
$35.00 4 days via FedEx
Ships from:
Thailand

Payment Options

  • paypal
  • stripe
  • escrow

Overview

Listing Type : Standard
Product ID : 676946
Starts : 18th August 2022 02:20 pm PDT
* All prices are in USD