Witherite, faceted, United Kingdom. 2.45 carats.

Product code: RWTH01

Product information

A milky, pale peachy-yellow faceted Witherite gemstone from Alston Moor, Cumbria, England.

It is not often encountered as faceted gemstones due to it low hardness, 3.0-3.5 on Moh's scale.

Named in 1789 for the English Geologist, chemist and botanist William Withering (1741-1799), Witherite is a rare barium carbonate mineral of the Aragonite group with chemical formula BaCO3 which forms in low temperature hydrothermal veins.

The gem on offer here displays the typical purple-blue fluorescence of the species when exposed to longwave ultraviolet light, as shown in image 3.

weight:  2.45 carats
shape:   Octagonal scissor cut
dimensions:  8.39 x 6.34 x 4.10 mm
treatment:  None

Technical specifications

Product Code RWTH01
Weight 0.025kg

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