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QUICK: Sea Stone Pigments? How to break up stone into powder? Answered

Over the summer i have thought up of turning stones you find by the sea side into pigment. I have searched forever since then and I cannot find the cheapest way to break up these stones into pigment.

Any ideas of things I could try would be great.

Thanks.

Discussions

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lemonie

7 years ago


Minerals are often best powdered with a ball-mill.
However, you might try roasting the stones hard in a fire, then quenching in cold water to see if that breaks them up a bit.

L

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caitlinsdad

7 years ago

How hard are the rocks or stones? Can you break them with a hammer or even a sledge hammer? Rolling ball mills may not help even with steel ball media trying to grind it up. You may need an industrial rock crusher to do the job.

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Kaffecaitlinsdad

Reply 7 years ago

I can scrape the rock against a metal nail file and can get some pigment off. So they aren't too hard. I think I just need something really rough to do the job.

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killerjackalopeKaffe

Reply 7 years ago

To break it up initially bag up a few rocks, either in a thick, tough plastic bag or fabric and beat it with a hammer... A plastic bag will keep all of the dust and likely be the simplest manner for collecting it quickly.

If the rock only splinters when hit with a hammer then grinding or filing may be the best way to go...

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caitlinsdadKaffe

Reply 7 years ago

Maybe a steel file and a wire brush to get the bits off. Work the rest in a stone mortar and pestle. Look up to see if dust from your pigment is dangerous to breathe.

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RedneckEngineer

7 years ago

Try rubbing the rocks against each other. You might get 2x the amount and your not wasteing money on buying something else to do it with. Just a thought.