The Anahi mine is a sophisticated operation which is vertically
integrated and, therefore, no longer markets its’ rough.
Boy,did I get a chuckle when I read this.You sure sugar coated
it.The rough has been out again since summer,I just came from
Brazil 2 days ago,but the rough still is not getting up to the
states,except what I am bringing in.Curious the up to date? I
even took photo’s of two huge cobbing operations in Belo
Horizonte,Brazil.They are processing multitonnage there every
month now,but it is all going to Gupta,STS,and Soni,former
partner of STS in the form of sawed flawless preforms. Bi-color
Amethyst does occur spotty from all mines,but there is no way to
make it by heating,or even irradiation.The heat needed to make
Citrine is 450C,how are you going to sheild the other half of
the stone? I could’nt.And irradiation reverberates,it is not
directional,so you can’t create it by irradiating.I tried that
too,lead shields on 1/2,everything.The Russians are growing it,I
forget the exact explanation of how,but it involves the
inducement or non-inducement of twinning,and stop and go
Hydrothermal process. “vertically intergrated”,great
description.In Brazil they call it “Grande Olho’s”,big eyes! Mark
Liccini http://www.LICCINI.com