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.
For nearly 12,000 years, industrial hemp was used as a primary fiber to manufacture rope, paper, canvas, and clothing until other forms of textiles were developed for these purposes. Truly an amazing plant species, hemp has the potential to produce âgreenâ products of all types.ecycled plastic mixed with hemp can be used for injection-molded products, as well as resins from hemp oil. Hemp fibers are currently being used in many industries as a substitute for fiberglass. The advantage that hemp has over fiberglass is that itâs lighter, stronger, biodegradable, and cheaper to produce.