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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.
#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 |
Jewellery masterpieces
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| Belle Epoque diamond necklace. Cartier. Paris. Sold in Magnificent Jewelry sale Sotheby’s New York October 1990 |
#jewelleryfacts365 279/365
Monday, May 8, 2017
Benitoites of excellent gem quality and transparency rarely exceed two carats, and few that do have such good color saturation combined with the gemminess. Most stones tend to have one or the other. This is an impressive brilliant oval that is very bright and has good clarity as well. It is big and impressive. Rough-and-cut sets make fabulous displays and this would fit into such a set, or it is of a hardness that makes it also perfectly wearable for jewelry. A classic rarity that will be difficult to replace as the deposit is unique in the world, and is now more or less stripmined and depleted. From the collection of former mine owner Bill Forrest. There have been quotes on pieces of this quality and size at $10,000 per carat retail.
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| Benitoite |
#jewelleryfacts365 278/365 Silver fact
Sunday, May 7, 2017
The name Silver originates from the Old English Anglo-Saxon word 'seolfor' meaning silver. The Symbol Origin is from the Latin word 'argentum' meaning silver. Argentina was named for this precious metal.
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| History of silver production in Argentina since January 1, 1927 |
#jewelleryfacts365 277/365 Diamond fact
Saturday, May 6, 2017
The first documented diamond betrothal ring was in 1475 at the wedding of Costanzo Sforza and Camilla D'Aragona in Italy. Their wedding poem read “Two wills, two hearts, two passions are bonded in one marriage by a diamond”
Craft Day
What I knitted while taking a break from blogging...
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| A scarf and finger-less gloves in brioche technique |
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