Burmalainen penakiitti

Burmalainen penakiitti
Burmalainen penakiitti
Tuotetta rajoitettu erä.
3,90 €

Mineraali : Penakiitti

Alkuperä : Burma

paino : 1,7ct

mitat ( noin )  : 8 x 7 x 4mm

soveltuvuus : keräilyyn ,tunnistukseen , koruun sellaisenaan ja uudelleen hiontaan

huomioitavaa : läpikuultava , väritön

hakusanoja : jalokivi,raakakivi,keräilykivi,kide,mineraali,kivilaatu,penakiitti,phenakite

Phenakite is one of the brightest of the colorless gemstones. With hardness of 7-5 - 8, it takes an excellent polish. It is exceptionally white and compared to other colorless gems, phenakite may be the whitest stone.

It is a rare beryllium mineral that is not often used as a gemstone. Its name derives from the Greek word 'phenakos' meaning deceiver .. a name acquired because of its close similarity to quartz, especially rock crystal. Indeed, phenakite was initially thought to be a variety of quartz, but its crystal twinning is distinct. It has also been confused with diamond, sapphire, topaz and beryl.


Known Facts
Color Key:White
Refractive Index::1.651-1.696
Chemical Composition:Be2SiO4
Hardness:7.5-8.0
Density:2.94--2.96
Crystal Group:Hexagonal
Ocurrence:Russia, Madagascar, U.S.A., Brazil, France, Switzerland, Ceylon, E. Africa.

Phenakite crystals are often rhombohedral and sometimes prismatic, showing wedge-shaped ends. Clear, hard specimens can be turned into valued gemstones that are notable for their brilliance and lack of color. Large clean stones are always sought by collectors and smaller stones seem to always be in demand for their metaphysical properties. Madagascar seems to be the most important source for this rare stone.

 

 

UUTUUDET
Uusi
Vintage arvokellot / merkkikellot
1 234,00 €
Uusi
sydän topaasi 8mm
17,50 €
Uusi
Imperial topaz pisara 18mm
Imperial topaz pisara 18mm
795,00 €
Uusi
AMETRIINI ovaali Boliviasta 17,8mm
AMETRIINI ovaali Boliviasta 17,8mm
195,00 €
Uusi
peridootti ovaali 0,7ct / 6,5mm
peridootti ovaali 0,7ct / 6,5mm
6,90 €
Uusi
Tansanian  rubiini 2,3mm
7,90 €
Uusi
Timantti 2mm
49,00 €
Uusi
Morganiitti 3mm hyvä sävy
Morganiitti 3mm hyvä sävy
9,50 €
Uusi
Rubiinipari 5mm
245,00 €
Uusi
Rubiini  briljantti 4,4mm
69,50 €
Uusi
Rubiini  briljantti 3,8mm
39,50 €
Uusi
7mm citriini viistehiottuna pyöreä briljantti