JTL URANIUM ROCK JURASSIC TODILTO LIMESTONE $36.00 + $12.80 shipping Radiation: 28,000. cpm Weight: 10.4 oz. This rock was collected at ground level (not underground) during August 2019, at the BARBARA-J MINE at Jurassic Canyon, located 20 miles NW from Gallup NM. As a type of radioactive limestone rock, it was produced at an ancient body of water in visible layers. Of the several types of uranium minerals, its layers of mineral are visible. When you buy this JTL, I will enclose a photocopy of a research article that confirms that the rock was produced gradually in water, during a time interval of thousands or millions of years. The ancient water body was called Ambrosia Lake, which has been dry for for millions of years. What makes JTL rocks very special, compared with other uranium minerals, is that radioactive dinosaur fossils are more likely located in JTL rocks, rather than in other varieties of uranium mineral rocks. The New Mexico Museum of Natural History has many displays of radioactive dinosaur fossils, and these originated at Jurassic Canyon, near Grants. Mount Taylor, the long- extinct uranium volcano, spewed huge amounts of uranium during the Jurassic era, 200 million to 146 million years ago; this was the era when the shores of Lake Ambrosia (in the shadow of the Mount Taylor volcano), teemed with many dinosaurs of various species. ALPHA RADIATION is the radiation type that is most easily blocked by barriers, even by clothing, paper, or the skin. Alpha radiation is the radiation type that is most commonly emitted by natural uranium. By contrast, Gamma ray radiation, is the "Macho" type of radiation. Gamma rays penetrate all barriers, even metals such as lead. Gamma rays make space travel difficult, because cosmic rays in outer space are mainly gamma radiation. Cosmic radiation at the ISS space station is 240 times more intense than natural surface radiation radiation on Earth; At the surface of red planet Mars, the radiation is 730 times more intense than Earth's own surface radiation. The Gamma Ray Burst of October 2022, a tightly focused narrow beam, traveled 2.4 billion light years to Earth; it was the most intense energy event since the early "Big Bang." That GRB interrupted low-frequency AM- radio on Earth for four days. Stephen Buggie, Ph.D. Univ. of New Mexico, Gallup Gallup NM 87301-6979