[Jewelry making - Article 00033] - Re: [Orchid] Untreated Peruvian turquoise rough

[John Donivan]

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>     All turquoise is porous until stabilized, regardless of quality. 

    An absolutely true statement, but it suggests to some degree that it
    must or should be stabilized. Turquoise is a porous stone, period.
    The harder it is, the less it it is a factor, but it is still porous
    always. Speaking as a one time big time turquoise buyer, cutter and
    trader, back in the dark ages.... 

http://www.donivanandmaggiora.com
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