Detailed sheet

wolframite

Its name comes from the german, “ wolfram” being the name of tungsten, which is its main component. The hubnerite variety is rich in manganese, of a rather red color, transparent and in slices, it was named after the german Adolph Huebner.
The ferberite variety is rich in iron and black opaque.



CHEMICAL CHARACTERISTICS

(Fe,Mn)WO4

iron and manganese tungstate



PHYSICAL CHARACTERISTICS

Main color

black

Other colors

brown, grey, yellow, red

hubnerite can be blood red

Color of streak

brown, red

Luster

adamantine, metallic

Hardness

5.0 to 5.5

Density

7.00 to 7.60

Cleavage

good

Fracture

uneven



OPTICAL PROPERTIES

Transparency

opaque, translucent

Refractive index

2.170 - 2.320

Double refraction

0.150

very strong when it can be measured

visible double refraction

No

Pleochroism

absent

Number of colors

1

Fluorescence

none



CRYSTALS PROPERTIES

tabular, sometimes lamellar or prismatic.

crystals system

monoclinic



OTHER INFORMATIONS

Astrological sign

Aries, Virgo

Exploited
sites

It is found in Portugal (Panasqueira), Hungary, Slovakia, Ukraine, Brazil, United States. Some beautiful transparent red hubnerite samples come from Peru. China has many deposits.

use in jewelry

it is cut in facets. It is a collection stone

Historical
healing properties

It would be a very powerful anchor stone . It would have a beneficial effect on the skeleton, would be helpful in professions where physical strength is needed, and as well for sportsmen.

Other
Gems

Venez visitez

notre site web

voillot-joaillier.fr

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo consectetur adipiscing elit. Ut elit tellus, luctus nec.

Shopping Cart