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.
Ecofibre's Industrial Hemp Fibre Production Guide. 2. Hemp is a 4 m tall annual, daylight sensitive, fibrous plant. It is a summer crop, grown for Fibre, Grain & Oilseed in many countries. There are over 2,000 lines, with low THC.