Wednesday, May 03, 2006

Opal

Opal is a very fun stone which has many colors.The fire in an opal is enchanting,it is a noncrystalline form of the mineral silica which, despite its amorphous structure, displays an amazing degree of internal organization. It is related to its more commonly found but highly crystalline cousins quartz and agate, and is formed from amorphous "balls" or lumps" of silica rather that from ordered, naturally faceted crystals.Opal is one of the few gemstones that is sedimentary in origin.It is found in Australia, Brazil, Czechoslovakia, Mexico and USA(Idaho).

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