Now I have a good excuse to buy a Peltier, But I have even seen red aventurine in an red and yellow Akro corkscrew. I do not consider the type with a dark stripe of aventurine in the red band red aventurine. I have a killer reddish orange and yellow handgathered marble loaded with aventurine in the red. The aventurine does float to the surface in that clear glass and can drift almost over the whole marble, thats for sure.