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.
The difference is in its use. Hemp and Marijuana both come from the same plant-Cannabis Sativa L. The term 'Hemp' commonly refers to the industrial/commercial use of the cannabis stalk and seed for textiles, foods, papers, body care products, detergents, plastics and building materials.owever, since the 1950s it has been lumped into the same category of marijuana, and thus the extremely versatile crop was doomed in the United States. Industrial hemp is technically from the same species of plant that psychoactive marijuana comes from.