yellow opal
pink opal pendant with pearls
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composition | hydrated silica gel |
name source | from the fact that it does not have a "play of color" |
other accepted names | milk opal, and moss opal, potch |
color | white, gray, yellow, blue, green, pink |
MOH scale | 5.5 - 6 |
care and treatment | Wash carefully in warm soapy water but don't soak. Do not use an ultra sonic jewelry cleaner. |
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