2M+ REVIEWS | 1000+ NEW GEMS DAILY |

You have not bid on this auction.

$76.00
Current Bid
1
Bids
Closed
03/05/2018 01:21 pm
1
366
3

Certified Top Fire 2.20 ct Natural Titanite Sphene

SKU
Dimensions (mm)
7.710 x 6.940 x 5.210mm
Weight (cts)
2.200
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:

  • TREATMENT NONE 100% NATURAL
  • COLOR GREEN MULTICOLOR SPARKLE

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

We Accept Payments through

  • Paypal
  • Direct Deposit
  • Credit Cards

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

zaragems
zaragems
Bangrak, Thailand
Verified
8454 Feedback

Bids History (1)
saeed11
Purchased from this seller previously
5 years ago
$75.00

Why are users outbidding themselves?

When a bid is placed, this is the maximum amount a user is willing to bid for the product. Our system will then automatically bid on that users behalf, incrementally increasing the bid to maintain their position as the highest bidder, up to the specified maximum.

When there is an icon indicating 'Auto Bid,' it means our system is actively placing bids for the user based on their maximum bid. This may appear as if users are outbidding themselves, but it's simply a result of the system updating the bid to reflect the users maximum limit.

Audit

The Gemstone Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

Shipping Details

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

Payment Options

  • paypal

Overview

Listing Type : Standard
Product ID : 724210
Estimated RRP : $176.00
Starting Bid : $88
Starts : 2nd May 2018 04:25 am AEST
Ends : 4th May 2018 06:21 am AEST
* All prices are in USD