VT '10, Born & Raised in the 804. Freeman Rebels, Keydets, Army Black Knights, NY Giants, NY Rangers, and ATL Braves. It's dolomitic limestone I'm pretty sure, so you might be able to contact some commercial supplier and buy some that looks close enough. It won't be real hokie stone but it should be close.
But what exactly is salt poisoning, and who is at risk? Salt poisoning, also known as hypernatremia, is when a body takes in dangerously high levels of sodium, according to the National Capital Poison Center. Too much sodium in the bloodstream can damage brain cells, and lead to seizures, coma or even death. Fluid can build up in the lungs, causing trouble breathing.
Low salt (sodium) levels in the blood: Symptoms may include headache; difficulty concentrating, memory changes or confusion; weakness and unsteadiness on your feet; and in severe or sudden cases hallucinations, fainting, seizures or coma. If not treated, severe low sodium levels can cause death.