Cassiterite is a tin ore. While used mostly in tin production, fine specimens of the black rocks are also used as ornaments. The black gemstones are usually opaque, but can be translucent when found in thin crystals. The black stones have a metallic luster that makes them desirable for jewelry.lso known as fluorspars, fluorites are fluorescent (an adjective derived from its name) stones that come in virtually all colors, including red, yellow, green and black. The black gemstones are less common. The black stones, like all fluorites, are rather soft, and hence not widely used in jewelry.
New Mexico Medical Marijuana Laws. New Mexico allows medical marijuana use under limited circumstances. However, it is still a crime to drive under the influence of marijuana, and other laws regarding marijuana possession for non-medical purposes will still apply. For information about how New Mexico treats illegal marijuana possession, sale, and manufacture, see New Mexico Marijuana Laws.
Minors may be legal medical marijuana patients as long as: 1  They reside in Colorado and have a parent or legal guardian residing in Colorado; 2  Their parent or legal guardian provides consent in writing to serve as the minorâs primary caregiver; 3  They have parental consent from each parent residing in Colorado;