In Puerto Rico and across the Caribbean, vermiculite has been a commercial commodity for many years. Vermiculite is a type of mineral that when heated to a high temperature, its flakes expand as much as 8 to 30 times their original size.
In Puerto Rico and across the Caribbean, vermiculite has been a commercial commodity for many years. Vermiculite is a type of mineral that when heated to a high temperature, its flakes expand as much as 8 to 30 times their original size.