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Old Comments:

2009-01-11 09:24:24
Your intelligent , no matter how slow your brain is poppy !
2009-01-11 01:45:41
Those rock piles almost look like they have faces carved into them.
2009-01-11 01:39:15
It's a slow day hereabouts, including my brain. ;-)
2009-01-11 01:36:43
Oh, I thought it was -"E"-gypsum
2009-01-11 01:13:49
Gypsum is calcium sulphate, CaSO4.2H2O.
2009-01-11 01:11:00
Chalk rock. Calcium carbonate, CaCO3.
2009-01-11 00:22:26
What type of mineral is the white rock? Is it Gypsum?