Thursday, January 8, 2015

ROCK TRIVIA; MOONSTONE
Moonstone has been known and valued for centuries because of its unique properties. The stone was named for the resemblance to the shimmer of moonlight. This light effect is known as adularescence. Moonstone is part of a group of rocks called Feldspar which include Sunstone and Labradorite.
The structural pattern of the stone is the reason for the optical effect. It is caused by the presence of tiny inclusions of other feldspar within the main rock. Where the two types of feldspar intermix, the light is refracted and scattered differently and this produces the shimmer. The color may be white, blue or blue-and orange. The most valuable color is blue. which will usually occur in a white or gray colored stone.
The classic moonstone, which is almost transparent with a bluish shimmer, come from Sri Lanka. Moonstone is also found in the USA, Brazil, Australia, Myanmar and Madagascar. Moonstone is also found in peach, grey, champagne and brown.
The price range for Moonstone is enormous.The more intense in color, the larger and the more transparent, the more highly valued the moonstone. Bluish moonstones of good quality have been becoming more and more of a rarity in recent years and the prices for these will continue to rise exponentially.

Photo: ROCK TRIVIA; MOONSTONE
     Moonstone has been known and valued for centuries because of its unique properties. The stone was named for the resemblance to the shimmer of moonlight. This light effect is known as adularescence. Moonstone is part of a group of rocks called Feldspar which include Sunstone and Labradorite.
     The structural pattern of the stone is the reason for the optical effect. It is caused by the presence of tiny inclusions of other feldspar within the main rock. Where the two types of feldspar intermix, the light is refracted and scattered differently and this produces the shimmer. The color may be white, blue or blue-and orange. The most valuable color is blue. which will usually occur in a white or gray colored stone. 
     The classic moonstone, which is almost transparent with a bluish shimmer, come from Sri Lanka. Moonstone is also found in the USA, Brazil, Australia, Myanmar and Madagascar. Moonstone is also found in peach, grey, champagne and brown.
      The price range for Moonstone is enormous.The more intense in color, the larger and the more transparent, the more highly valued the moonstone. Bluish moonstones of good quality have been becoming more and more of a rarity in recent years and the prices for these will continue to rise exponentially.

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