Skip to product information
1 of 6

prettyrock.com

Clam Shell Opal - 123ct - Hand Select Gem Rough

Clam Shell Opal - 123ct - Hand Select Gem Rough

SKU: clam-shell-opal-08262021-4

Regular price $246.00 USD
Regular price Sale price $246.00 USD
Sale Sold out
Shipping calculated at checkout.
A rare opalized fossil clamshell from Australia that formed during the cretaceous period (about 100 million years ago.) Very nice specimen! Spots of good fire under the outer shell layer. Great collector's piece! Shown on 1/4" graph paper.
Family : Opal
Variety : Clam Shell
Origin : Coober Pedy, South Australia
Size : 38 x 36 x 24
Treatment : none known
Total Carats : 123
Clarity : %

How we measure our gems, rough and mineral specimens: Dimensions are in millimeters(mm) Weight is in carats(ct) Tp find weight in grams divide the carate weight by 5) Graph paper is 1/4 inch squares.

View full details
  • Still not sure?

    If you need more information or more photos/video, let us know. You can email us: service(at)prettyrock.com

    We are very friendly and love to talk rocks :)

  • Shipping and Returns

    Orders under $25 are $5 in the USA, and $25 to Canada, $30 anywhere else.

    We have a 14-Day return policy for unaltered items.