[Jewelry making - Article 00088] - Re: [Orchid] Agatized dinosaur bones

[Rose Alene McArthur]

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    And I have often thought how wonderful it would be to live in a place
    that had fossils. The only ones around here are some famous leaves
    that still have their chlorophyl after many ages.....besides um,
    petrified wood, some of it opalized, but not precious opal. Opal has
    some water losely attached to the silicon dioxide molecules, so the
    surfaces are more vitreous than most wood replaced by the
    cryptocrystalline quartz. Some of the replacements are really the
    stuff to look at through microscopes for all the little individual
    cells. But it also chips much more easily than the other stuff..a
    litle iffy for intarsia. 

Rose ALene
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