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originally posted by: FossilLin
a reply to: sapien82
Numerous minerals have right angles (straight sides meeting one another at 90 degrees). But large rocks do not have right angles, because rocks rarely fracture or erode into right angles. Anyway, I have seen many strange rocks sold in the market. I never saw rocks with right angles (flat sides meeting at 90 degrees).
originally posted by: FossilLin
a reply to: BigDave-AR
Just show me a large rock (not pyrite) that has flat surfaces meeting at 90 degrees.
originally posted by: OneBigMonkeyToo
a reply to: BigDave-AR
Or sandstone
structuralgeo.wordpress.com...
or limestone
www.flickr.com...
I imagine he's familiar with schist
www.flickr.com...
or did I misread something...
originally posted by: FossilLin
a reply to: BigDave-AR
I saw all that many, many years ago.
originally posted by: FossilLin
a reply to: BigDave-AR
In order to reply to you, please show me ONE, not MANY, rock that you think falsifies me. Do not use photos in Pinterist or any site that requires log in.