Thursday, January 21, 2010

Wrapped Round Stones and Properties of Jet


I was really having trouble how to determine to wrap round stones when I came across an online tutorial with just that theme. It was not as easy as it looked but it certainly solved my dilemma.
Pictured here is a sterling silver wrapped piece of round jet.
I find jet facinating. For those of you unfamiliar with jet, it is also known as lignite. It is a geological material but not considered a true mineral but rather a mineraloid, as it has an organic origin, being derived from decaying wood under extreme pressure (coal).
Some miscellaneous information about jet:
Unlike black glass which is cool to the touch, jet is not, due to its lesser thermal conductivity.Jet is also known as black amber because it may induce an electrical charge when rubbed like amber.
When Queen Victoria's husband Albert died she ordered that no jewellery except jet should be worn because of its austere yet modest appearance. It became THE mourning jewellery. Jet was also used for monk's rosaries.

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