Hello Turbo,
Yes, Marty heat treated it. He also recommended that I heat treat it. But, I am trying to tackle raw cherts. So, I don't bother heat treating any rock, since I am working with really high power operations.
However, agatized coral needs thermal alteration, in my opinion. Also, chalcedonies, jaspers, and agates, should be heat treated as well, if they are not susceptible to normal flaking methods that produce conchoidal fractures. So, this stuff needs to "melted" a bit with heat.
Anyway, Turbo, since you are the first to ask, I will let you have "pick of the litter". I will post three or four batches in the "sale" area, for you. After you decide what you want, I can check on the shipping. And, then I will be able to send it off.
By the way, I live about a mile from where the Hombre del Templo remains were found. The river systems used to be dry caves, during the Ice Age. And, in some cases, people fell down into the chasms, that can be found in the ground of the Yucatan. After the Ice Age ended, the sea level rose, and flooded all of the caves with water. Today, there are thousands of miles of caves here, that used to be open air, but now are filled with water. And, whenever signs of human habitation are found, it means, that the people were there, during the Ice Age.