Detailed sheet

pezzotaite

Discovered in 2002, it honors the name of the Italian mineralogist Federico Pezzotta, who discovered it in Madagascar.



CHEMICAL CHARACTERISTICS

Cs(Be2Li)Al2[Si6O18]

aluminum, lithium, cesium and beryllium cyclosilicate



PHYSICAL CHARACTERISTICS

Main color

pink

Other colors

red

its color is due to caesium

Color of streak

white

Luster

vitreous

Hardness

8.0 to 0.0

Density

2.90 to 3.10

Cleavage

indistinct

Fracture

conchoidal



OPTICAL PROPERTIES

Transparency

translucent, transparent

Refractive index

1.608 - 1.615

Double refraction

0.007

very weak, uniaxial (-)

visible double refraction

No

Dispersion

-

Pleochroism

strong

Number of colors

2

orange - red, purple

pezzottaite spectrum system

Fluorescence

none



CRYSTALS PROPERTIES

pseudo-hexagonal massive

crystals system

trigonal



OTHER INFORMATIONS

Exploited
sites

It is found at the Sakavalana mine, near Ambatovita in the region of Fianarantsoa in Madagascar but also in Afghanistan (in the Nuristan region and Ningharar).

use in jewelry

collection stone of a beautiful color, its hardness would allow the use in jewelry. It is cut faceted or cabochon when of gem quality, with a nice effect in its varieties of a beautiful translucent pink.

Other
Gems

Venez visitez

notre site web

voillot-joaillier.fr

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