Quartzite is a non-foliated metamorphic rock that is produced by the metamorphism of sandstone. It is composed primarily of quartz. The specimen 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.
To date, 33 states and Puerto Rico have introduced pro-hemp legislation, and 24 states have defined industrial hemp as distinct from other strains of cannabis and removed barriers to its production. In January of 2015, the Industrial Hemp Farming Act was introduced in the House and Senate, H.R. 525 and S. 134.