Wulfenite

Wulfenite is a gorgeous lead mineral which is often a bright yellow-orange to orange-red colour, but can also occur in browns and green. It should be considered toxic and handling should be minimised.

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Information about Wulfenite

Appearance

It can be used as either an ore of lead or molybdenum, and is also prized by collectors.


Uses and History

 

It can be used as either an ore of lead or molybdenum, and is also prized by collectors.

 

It was originally described in 1772 by Ignaz von Born, as plumbum spatosum flavo-rubrum, and later renamed in 1781 to Kärntherischer bleispath.

 

It was finally renamed in 1845 and named after Franz Xavier von Wulfen, an Austrian mineralogist.


 

Mineralogy

Chemistry
Lead molybdenate mineral with formula PbMoO4.
Colours and Variations
Orange-red, yellow, yellow-honey, reddish-brown
Streak
White
Luster
Adamantine to resinous
Transparency
Transparent to opaque
Fracture
Irregular
Crystal habit
Thin tabular crystals
Mohs hardness
3
Fluorescence
Specific Gravity
6.5 – 7.0
Easiest testing method
Sometimes piezoelectric.

Hazards and Warnings

Toxic, contains lead and molybdenum.

Mineral collectors should wash their hands after handling specimens, to avoid any exposure to potential toxins.

Almost all rocks, minerals (and, frankly, almost all other substances on earth) can produce toxic dust when cutting, which can cause serious respiratory conditions including silicosis.

When cutting or polishing rocks, minerals, shells, etc, all work should be done wet to minimise the dust, and a suitable respirator or extraction system should be used.


Translations

Arabic:

  • وولفينيت

Hindi:

  • वुल्फेनाइट

Portuguese:

  • Wulfenita

Bengali:

  • উলফেনাইট

Indonesian:

Punjabi:

English:

  • wulfenite

Italian:

Russian:

  • Вульфенит

French:

  • Wulfénite

Japanese:

  • ウルフェナイト

Spanish:

  • Wulfenita

German:

  • Wulfenit

Korean:

  • 울페나이트

Thai:

  • วุลฟีไนต์

Gujurati:

  • वुल्फेनाइट

Mandarin Chinese:

  • 钨铅矿

Urdu:


Further Reading / External Links