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$80.00 USD
Estimated RRP $160.00
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13/09/2018 02:05 am
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Certified Top Fire 2.0 ct Natural Titanite Sphene

SKU
Dimensions (mm)
8.850 x 6.790 x 3.860mm
Weight (cts)
2.000
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:

  • TREATMENT NONE 100% NATURAL
  • COLOR GREEN MULTICOLOR SPARKLE

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Shipping provider Shipping to Thailand Shipping to rest of world
Standard Shipping - Tracked $20.00 / 7 days $15.00 / 21 days
Thailand
Standard Shipping - Tracked is discounted to $25.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
DHL $35.00 / 4 days $35.00 / 7 days
Thailand
DHL is discounted to $40.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $35.00 on orders with 2 or more items

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zaragems
Bangrak, Thailand
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Audit

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Shipping Details

Shipping:
$35.00 7 days via DHL
Ships from:
Thailand

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 724209
Starts : 8th September 2018 11:20 am PDT
* All prices are in USD