Hornfels is a fine-grained nonfoliated metamorphic rock with no specific composition. It is produced by contact metamorphism. Hornfels is a rock that was baked while near a heat source such as a magma chamber, sill or dike. The specimen shown above is about two inches (five centimeters) across.
Industrial Hemp Facts. Industrial hemp is a variety of Cannabis sativa and is of the same plant species as marijuana. However, hemp is genetically different and distinguished by its use and chemical makeup. Industrial hemp refers to cannabis varieties that are primarily grown as an agricultural crop.
Also known as cannabis oil or cannabidiol, industrial hemp oil has been growing in popularity as a self-treatment option for many people suffering from emotional or physical discomfort. While sometimes compared to medical marijuana, industrial hemp oil is not illegal, nor is it a psychotropic drug. Although cannabidiol is an ingredient in both regular and medical marijuana, the main component, THC, is only present in very small traces in cannabidiol cannabis oil.