Thanks for your reply.

By referring to the page http://en.wikipedia.org/wiki/Frothflotation the process speaks about solving the mineral in water after grinding it properly, and then uses the other segments of the procedure. I mention that my goal is not to separate copper from azurite but extracting azurite itself. So perhaps using an acid like H2SO4 in such a case is absurd. I have ground the stone into powder & I solved it into water then poured the water away and three times I repeated the procedure but at last some lime remained with azurite.

The Froth Flotation method talks about a surfactant or collector chemical which now the question is what kind of collector chemical I should use?

Another thing to mention is that, since the stone I have is 2 to 5 percent azurite, and I don’t want to produce azurite in large scales at the moment, thus I need an economical procedure. I want to separate it at home and just process 40 kgs of the mineral stone now.

Can you suggest an economical method? Is there a material which can solve lime and not azurite? I was wonder if you can explain me a process in details to separate azurite.

Amin Gharra

PS: also if you wanted to email me: amin.gharra@gmail.com

PS #2: I have ground a cinnabar necklace and inside it, it is whitish; so the powder, as you see in the photo, is pink. Why the outside surface of cinnabar is red while its inside is whitish? It’s an Indian cinnabar necklace. Is there any method to make it red to become like the third photo?

Many many thanks





■