• <span>Tansanit_P_19.152_GLA51116_14.100</span>
  • <span>TAN_P_19.152_Achteck_GLA51116_14.100_000001</span>

Tanzanite pair

Item Number: 2020-0338

In stock

S$20,390.62

incl. 20% VAT

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Details

Weight:
19,152 ct.
Color Quality:
very good (III)
Purity:
smallest inclusions (B)

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Facts

properties of tanzanite

  • Belongs mineralogically to zoisite
  • Hardness grade 6,5-7
  • Chemical formula: Ca2Al3(SiO4)3OH
  • Includes the colors blue, violet and brown
  • By heating it develops its famous blue color
  • Density from 3,29 - 3,4

origin

worth knowing

  • Only place of discovery: Tanzania
  • Tanzania locality was discovered in 1967
  • Was mineralogically known as "Zoisite" for a long time
  • Became known worldwide through the movie "Titanic"

Tanzanite as an investment

  • Rare, strongly increasing in value
  • finds become less, because there is only 1 mining area
  • rather bigger stones are preferable
  • Larger stones have higher increase in value
  • stones with deep blue color are to be preferred
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