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How hard is petrified wood? Very hard: petrified wood rates between 7 and 8 on Mohs Hardness Scale, with talc at 1 and diamonds at 10.
originally posted by: shawmanfromny
Cool Find...Petrified Tree Spotted On Mars?
originally posted by: FlyingFox
How long ago did Mars have a dense enough atmosphere for a tree?
Let's get real.
originally posted by: shlaw
Not adding to my opinion it's a rock, (note-opinion)
but I noticed there is a suggestion of a man or woman
reaching for a sword. maybe it's statue!
sorry for using paint to highlight. I was being lazy.
see original pic by OP and it will jump right out.