Ferro-sillicon sand

Does anyone know another name for or another material i can use to disolve kimberlite host rocks?

I cant find this material sold in small quantities unless i’m misunderstanding what it is. I keep getting aquarium sand or that magnetic stuff inside the old give the bald guy hair with a magnet toys.

If you are attempting to recover larger crystals, mechanical removal (abrasion tools) is the best way.

I hesitate to suggest a chemical extraction process like posted here because hydrofluoric acid is very dangerous. Highly recommend not using that method!

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Thanks soaking one type in water for a week is doing enough for me to break some stones out of. With light


hand tools.