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My
periodic table poster
is now available!
Holey limestone.
This is "holey limestone" from Texas. Not to be confused with "holy rock".
Source:
eBay seller endo80
Contributor:
Theodore Gray
Acquired:
8 February, 2009
Text Updated:
8 February, 2009
Price:
$16
Size:
8"
Composition:
Ca
C
O
3