I guess there isnt any, but in my experience, there is no noticable difference from different blends of changa and pure DMT, atleast not to me, unless there is salvia divinorum in the changa, which there often is, people cut their changa with salvia and pass it off as the real thing, atleast here in scandinavia, when i get that type of blend there is a major difference, but from one herbal mix to another its more or less the same, to the degree dmt trips can be the same
Copper has been used and cherished for around 9,000 years. Pots that are made of copper are ideal heat conductors; the material is durable, hygienic and corrosion-resistant. Above all, it is the excellent heat conductivity that makes copper a perfect base material for pots and pans.
About the Statue of Liberty. What materials make up the Statue of Liberty? The Statue of Liberty is made of copper 3/32in. (about 2.5mm) thick, the same as two American pennies placed together. The internal structure is comprised of cast iron and stainless steel. Why is the Statue green? The Statue's copper has naturally oxidized to form the outer patina, or green, coating. Upon completion in 1886, the Statue of Liberty was more of a traditional brown color, like an American penny. It took about thirty years for the Statue of Liberty to fully oxidize and form the patina.