Tansanit_10.335_GLA50587_11.000" title="Tansanit_10.335_GLA50587_11.000" sizes="(max-width: 600px) 100vw, 600px" srcset="https://thenaturalgem.com/wp-content/uploads/2020/11/tansanit_10.335_gla50587_11.000-3-100x100.jpg 100w, https://thenaturalgem.com/wp-content/uploads/2020/11/tansanit_10.335_gla50587_11.000-3-300x300.jpg 300w">
TAN_10.335_Achteck_GLA50587_11.000_000001" title="TAN_10.335_Achteck_GLA50587_11.000_000001" sizes="(max-width: 600px) 100vw, 600px" srcset="https://thenaturalgem.com/wp-content/uploads/2020/11/tan_10.335_achteck_gla50587_11.000_000001-2-100x100.jpg 100w, https://thenaturalgem.com/wp-content/uploads/2020/11/tan_10.335_achteck_gla50587_11.000_000001-2-300x300.jpg 300w">

Tanzanite

Item Number: TAN-2020-161

€11.000,00

incl. VAT

In stock

Ask about gemstone

Name
First Last
Tel
E-Mail*
Anmerkungen (optional)
Comments
This field is for validation purposes and should be left unchanged.

Details

Price:

11.000,00 €

Weight:

10,335 ct.

Color:

Blue

Shape:

Octagon

Dimensions:

13,28 mm x 9,72 mm x 8,68 mm

Color Quality:

very good (II)

Purity:

Eye clean (A)

Origin:

Tanzania

Treatment:

not detectable

Certificate:

GLA50587

Item Number:

TAN-2020-161

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

Tansania

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