Detailed sheet

wulfenite

Discovered in 1845, it honors the name of the Austrian mineralogist Franz Xaver von Wulfen (1728-1805).



CHEMICAL CHARACTERISTICS

Pb[MoO4)

lead molybdate



PHYSICAL CHARACTERISTICS

Main color

orange

Other colors

brown, yellow, red

Color of streak

white, yellow

Luster

adamantine, greasy, resinous

Hardness

3.0 to 0.0

Density

6.50 to 7.00

Cleavage

indistinct

Fracture

conchoidal, uneven

cleavage only on one axe



OPTICAL PROPERTIES

Transparency

opaque, translucent, transparent

Refractive index

2.280 - 2.400

Double refraction

0.120

very strong uniaxial ( - ), but can appear wrongly biaxial

visible double refraction

Yes

Dispersion

forte 0,200(0.130)

Pleochroism

weak

Number of colors

2

yellow, orange

wulfenite spectrum system

Fluorescence

variable

yellow, orange, red



CRYSTALS PROPERTIES

tabular

crystals system

tetragonal



OTHER INFORMATIONS



APPROACHING GEMS

Exploited
sites

In France it is found in the Cap Garonne Mine in the Var, in that of Farges, in Ussel in Correze, in Germany in the Katharina Mine in the Palatinate, in Mexico (Chihuahua), in Arizona from which come beautiful specimens (Red Cloud Mine), Morocco, Namibia, Zambia, Zaire, Mogolie, China.

use in jewelry

it is cut in facets. It’s a collection stone

Historical
healing properties

close to the topaz in the vibrational level, it would be related to the solar plexus chakra and bring warmth and wellbeing.

Other
Gems

Venez visitez

notre site web

voillot-joaillier.fr

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