The Real Amber Glass you speak of isn't just the hardened by product of making BHO as suggested in another post. Amber Glass is 3 ounces of Golden keif from Cali Heads that is melted/condensed by butane, no other product is added. It is usually pressed and processed to be very dense. The going price on a gram is about $300. As far as how to make it, all I know is that it isn't the same as BHO, no stainless steel tube is used, the butane instead of being used to extract resin from buds is used to condense the already pure and potent pollen. Hope that helps. It's one of or is the most concentrated and potent forms of THC.