Dr. Campbell,

Thank you for the information. I have requested Carter 1990 via
interlibrary loan and anxiously await its arrival.

Ben Carter

David Campbell wrote:
> Like many pteriomorphians, Spondylus has an outer shell layer of
> calcite and inner layers of aragonite.  Inner layers are crossed
> lamellar; outer layer is foliated.  See Carter, 1990 (Skeletal
> Biomineralization) for lots of detail.
>
> --
> Dr. David Campbell
> 425 Scientific Collections
> University of Alabama
> "I think of my happy condition, surrounded by acres of clams"
>
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