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.
Shown Here: Introduced in Senate (01/08/2015) Industrial Hemp Farming Act of 2015. Amends the Controlled Substances Act to exclude industrial hemp from the definition of marihuana.. Defines industrial hemp to mean the plant Cannabis sativa L. and any part of such plant, whether growing or not, with a delta-nine tetrahydrocannabinol concentration of not more than 0.3 percent on a dry weight basis.