#jewelleryfacts365 282/365 Gold fact
Solid gold jewelry does tarnish. However, pure 24K gold is not susceptible to tarnishing. The other alloys like copper and silver used solid gold jewelry cause the tarnishing. The higher karat the gold is, the less noticeable the tarnish will appear over time. This explains why a lot of antique gold jewelry from the Victorian era has a dark rosey tone to it. The lower karat jewelry of this time period used a lot of copper which creates a beautiful patina that cannot be replicated. Cleaning of antique jewellery will reduce their value..
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#jewelleryfacts365 281/365 Gold fact
Wednesday, May 10, 2017
The visors of astronauts' space helmets receive a coating of gold so thin (0.00005 millimeters, or 0.000002 inches) that it is partially transparent. The astronauts can see through it, but even this thin layer reduces glare and heat from sunlight.
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gold facts,
jewellery facts
#jewelleryfacts365 280/365
Tuesday, May 9, 2017
A posy (posie) is a short verse, often from a poem, inscribed on a ring. Posy rings were first commonly worn in the 15th century.
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A posy ring |
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