Detailed sheet

poudretteite

It owes its name to “Poudrette Quarry” in Mont Saint-Hilaire in Canada where it was discovered. The deep pink gem variety can be cut and was not discovered until 2001.



CHEMICAL CHARACTERISTICS

KNa2B[Si12O30]

potassium and sodium borosilicate



PHYSICAL CHARACTERISTICS

Main color

pink

Other colors

colourless, red, purple

Color of streak

white

Luster

vitreous

Hardness

5.0 to 0.0

Density

2.50 to 0.00

Cleavage

indistinct

Fracture

conchoidal



OPTICAL PROPERTIES

Transparency

translucent, transparent

Refractive index

1.480 - 1.530

Double refraction

0.021

definite

visible double refraction

Yes

Pleochroism

absent

Number of colors

1

Fluorescence

none



CRYSTALS PROPERTIES

very small dipyramidal

crystals system

hexagonal



OTHER INFORMATIONS

Exploited
sites

It is also found at Mogok in Burma, where the crystal gems come from.

use in jewelry

rare collection stone of a very beautiful intense pink color

Other
Gems

Venez visitez

notre site web

voillot-joaillier.fr

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