Fw,
Without seeing them close up it's hard to tell. I agree entirely with earlier answers and the relationship with weathering. I suggest the same is true here. The two stones must be of different rock or, more likely, the same rock but a softer/harder piece of that strata. It is not uncommon to have many hardnesses of the same geology, from the same locality, depending on the type, formation and quite a few other factors.
What is the main geology in the area?
 Reply | with quote | Posted by CraigR
8th November 2001ce
17:34 |
About Ye Olde Devils Arrows (FourWinds, Nov 04, 2001, 19:11)- Re: About Ye Olde Devils Arrows (fitzcoraldo, Nov 04, 2001, 20:27)
- Humour me further please (FourWinds, Nov 06, 2001, 14:50)
- DOH!! (FourWinds, Nov 06, 2001, 14:56)
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