Thread: stone ID

Interesting...

If the OP is willing to send me a private message
that has some location information I can take an afternoon
and try to see if there is a clue in the local geologic survey library.
I do not need exact info just a general vector from a
town or landmark.

To set expectations that area of the world is complex. It is
possible I could have more questions than answers.

The obvious question can you scratch it with a knife.
Can you scratch it with quartz.
Does it fizz when a drop of dilute acid is applied.

Is there a local university with maps or people that
might answer a question or two. You do not have to
ask about it being a 'hone' just ask about the rock
itself.

The interesting thing about that part of the
world is the complex mineralogy that the metamorphic
terrain generates.

Meta sedimentary rocks could very well produce great hones.
A very fine grained siltstone that was cooked just right
by mother nature could be excellent. If you are happy
to pick and choose you might get a pick-up truck of raw material
that is worth the effort even when a quarry operation would not be justified.

A mud or sand saw made of scrap could trim the blocks to size
trading time for diamonds.