Benson Ration, Navajo - Sterling Silver
Paula says: "This piece is NOS (new old stock) that was made more than a decade ago but never sold - it is brand new vintage!"
What is Spiny Oyster?
Spiny oyster, not surprisingly, is an oyster that is covered with spines. Like coral or mother-of-pearl, the shell of spiny oyster is considered an organic gemstone. The portion of the shell used to make jewelry is aragonite, which consists of calcium carbonate (CaCO3). Aragonite has the same chemical formula as calcite. Spiny oysters are found along the Atlantic coast of Baja California and Baja Mexico. Common colors vary from orange, found in shallow waters, to red and purple from deeper waters. The shell is also found in white, yellow, pink and brown. Polished shell has definite striations and color variation. Red spiny oyster has been used as a subsititute for coral.
100% solid silver won't tarnish but it is too soft to use for making jewelry - it could easily be scratched, dented and bent. Sterling silver has a small amount of one or more other metals usually copper, added to the silver. To be called sterling silver, the alloy must contain at least 92.5% pure silver. Sterling silver alloy is harder than pure silver but the added metals also can cause discoloration or tarnish.
NOTE: Items in our Vintage Shop are either USED or NEW. They might come from inheritances, estate sales, private collections, and store liquidations. Many items are brand new (, New Old Stock) and in perfect condition while others may show tarnish, scratches and other signs of use. Major issues will be described in detail and shown in photos. Vintage Shop items are sold as described and are not returnable
Horsekeeping LLC - Definitions of Jewelry Age and Condition
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|A dark or colored film of oxidation that forms naturally on metal exposure to air and other elements. It is often valued for its aesthetically pleasing appearance.|
|30 years or older.|
|New Old Stock. Retail store inventory from at least 10 years ago.|
|An item that has been used.|