is it silica or black beauty - The Planted Tank Forum
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post #1 of 4 (permalink) Old 09-20-2006, 02:42 AM Thread Starter
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is it silica or black beauty

Well today i was a LFS and while looking around at the gravel section, i saw a container of black sand. This sand was shinny and sharp. It looked like what i've seen in pictures of black beauty sand blasting grit. I asked about it, and they told me that it was silica sand and would be a dollar a pound. My cell phone pouch has a magnetic clasp, so i took a pinch of this sand and sprinkled it over the magnet and it stuck to it.

So do you think this is black beauty as I suspect or is it black silica? I don't think silica would stick to a magnet but i've never actually used or seen either in person before.

I want a black sand for a cherry shrimp tank that i want to start. I'm not sure that I would want to use black beauty. I've been reading threads that say it's a by product of copper production, some threads say its iron slag. I'm just not sure it would be safe for shrimp.
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post #2 of 4 (permalink) Old 09-20-2006, 04:15 AM
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Silica sand would not stick to a magnet. Besides which I'm not even sure if there is a black silica. Most black sand would be volcanic in origin. I would guess that what you found is the Black Beauty blasting grit. Normally it's iron slag.
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post #3 of 4 (permalink) Old 09-20-2006, 11:34 PM Thread Starter
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I tend to think it's black beauty too based on descriptions that i've read here.

You think there isnt such thing as black silica, i thought so too but then i came across sites that sell black sand for cigarette urns and they all call it black silica.
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post #4 of 4 (permalink) Old 09-21-2006, 12:02 AM
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Hutchinson sand sells black granitic sand. Its called Early Green, it is sold for golf courses. The company is Canadian, so it might be easy for you to get.
Hutcheson Sand & Mixes :: Golf Sands :: Top Dressing Material
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