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FERBERITE QUARTZ

$125 $95

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FERBERITE QUARTZ
FERBERITE QUARTZ
FERBERITE QUARTZ
FERBERITE QUARTZ
FERBERITE QUARTZ
FERBERITE QUARTZ

FERBERITE QUARTZ

$125 $95

FERBERITE QUARTZ

Great Ferberite Quartz Specimen to add to your collection. An uncommon metal Crystal in a double terminated Quartz Crystal. The Ferberite Crystal has a partial termination on top. Ferberite is an ore of Tungsten which is used to create fake Gold bars which are then coated with a thin layer of Gold. That is because Tungsten has the same specific gravity as gold does. The best way to test for this type of fakery is to drill a very small hole in the bar and test the filings. This specimen is mounted on a perspex pad for enhanced display.

Location:
Yaogangxian, Hunan, China.

Dimensions:
5.2cm x 2.9cm x 3.5cm, 54g.

Iron Tungstate FeWO4.

In stock

FERBERITE QUARTZFERBERITE QUARTZ

Great Ferberite Quartz Specimen to add to your collection.  An uncommon metal Crystal in a double terminated Quartz Crystal.  The Ferberite Crystal has a partial termination on top.  Ferberite is an ore of Tungsten which is used to create fake Gold bars which are then coated with a thin layer of Gold.  That is because Tungsten has the same specific gravity as gold does.  The best way to test for this type of fakery is to drill a very small hole in the bar and test the filings.  This specimen is mounted on a perspex pad for enhanced display.

Location:
Yaogangxian, Hunan, China.

Dimensions:
5.2cm x 2.9cm x 3.5cm, 54g.

Iron Tungstate FeWO4.

Ferberite belongs to a series with another mineral, Huebnerite , MnWO4.  Huebnerite is the Manganese rich end member while Ferberite is the iron rich end member.  Wolframite is the name of the series and the name applied to indistinguishable specimens and specimens intermediate between the two end members.  Most specimens found in nature fall within 20 – 80% range of the series and these are termed Wolframites, (Fe, Mn)WO4.  Only if they are 80% or more iron are they called Ferberite.  Ferberite’s iron content causes the dramatic differences between it and Hubnerite (Wolframite is of course intermediate).  Ferberite tends to be black coloured, with a black streak, is opaque with a nearly submetallic luster, is denser, has crystals with a different elongation and can be weakly magnetic.  Huebnerite, however, tends to be light in color, with a lighter streak, more transparent and less dense.  Ferberite is the rarer member of the series.

Quartz: SiO2.

Quartz is one of the most common minerals found in the Earth’s crust.  If pure, quartz forms colorless, transparent and very hard crystals with a glass-like luster.  A significant component of many igneous, metamorphic and sedimentary rocks, this natural form of silicon dioxide is found in an impressive range of varieties and colours.
Quartz in it’s polished form was the most advanced technology thousands of years ago, used by the Assyrians.  Quartz was used as a lens to focus light and could start a fire.  The Vikings would have used one of these to find the sun on a cloudy day.  It would have been used as a magnifying glass too.  Today it leads technology being the main component of transistors which make our computers work and solar panels.

Weight 100 g
Dimensions 5 x 5 x 5 cm