When limestone gets even more squashed, it can turn into travertine or marble. Limestone is also the main way you get lime, which is one of the things you make cement out of. To get lime, you have to burn limestone in lime kilns, and then what is left is lime. In the Middle Ages, people burned most of the statues of ancient Greece and Rome to turn them into lime.
Far as I am aware, CBD oil is not legal in Texas. It is legal for medical use in only Utah, Alabama, Kentucky, Wisconsin, Mississippi, Tennessee, North and South Carolina, Iowa, Florida, Georgia, New York, and Missouri.
Chet gives some of the best advice in this section. His answers are usually very detailed and well-researched. He has taught me more about legal matters in Texas than anyone else. Having said that, one still can be wrong occasionally, as in this case. Brass knuckles are illegal in Texas. Stun guns are NOT. Since Blast Knuckles are basically stun guns designed to deliver around 950,000 volts of shock therapy, they are legal. I do not know how effective they are, but they are legal.