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.
One industrial hemp seed company in Ontario has a breeding program aimed at creating varieties with specific oil and fibre characteristics. Hemp oil meal and the de-hulled hemp grain, known as hemp nut, are used to make such food products such as granola bars and cookies.