[Jewelry making - Article 00069] - Re: [Orchid] Agate or Jasper?

[MillsGem]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========


    All, Basically Jasper is "dirty" chalcedony. Enough said....(smile) On
    a more serious note, I have a BOOK on jasper....problem is that it
    is in Russian. I'm not having any problem understanding the Russian
    photographs ( smile again) , but the cyrillic text is daunting me.
    Is there anyone out there who can translate it for me ? The Russian
    text is thirty pages long. There is a "summary" in English, but it
    is just two pages. I am curious to know what the Russian text says.
    The best feature of the book is that it has approximatly two hundred
    color photographs. Apparently the Ural Mountains constitute perhaps
    the largest Jasper deposit in the world. It is interesting to note
    that many of the types that we have considered to be rare or unique
    also occur there. Another interesting aspect of the Russian jasper is
    that it occurs throughout the Ural Mountains. The Urals are thought
    to be a "suture" zone wherein ancient continental plates collided
    and produced subduction metamorphism. Our own coast ranges on the
    west coast could be said to be a suture zone inasmuch as about
    twenty million years ago the Pacific plate was being subducted. Thus
    we have a wide variety of jaspers throughout the coast ranges.   Ron
    at Mills Gem, Los Osos, CA. 


____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________