"What is Vermiculite?" Without getting too scientific, Vermiculite is a natural mineral that resembles mica. This mineral has some unique characteristics. It is light-weight, fire-resistant,...
What is Vermiculite? Vermiculite is a hydrated basaltic mineral with some unusual properties. It has a unique physical structure, which takes the form of crystalline...
tinyurl.com - Grow Your Own mushrooms, step by step instructions! Here's an easy and straight forward way to sterilize your vermiculite using your pressure cooker....