THC or tetrahydrocannabinol is the primary psychoactive substance of the cannabis or marijuana plant. Dronabinol has a variety of effects on the central nervous system, one of which being an appetite stimulant. According to the website RxList, dronabinol may stimulate appetite for 24 hours or longer after administration.
Definition of CASSITERITE. : a brown or black mineral that consists of tin dioxide and is the chief source of metallic tin âcalled also tinstone.
For the jewellery, see Marcasite jewellery. The mineral marcasite, sometimes called white iron pyrite, is iron sulfide (FeS 2) with orthorhombic crystal structure. It is physically and crystallographically distinct from pyrite, which is iron sulfide with cubic crystal structure.pecimens of marcasite often crumble and break up due to the unstable crystal structure. On fresh surfaces it is pale yellow to almost white and has a bright metallic luster. It tarnishes to a yellowish or brownish color and gives a black streak. It is a brittle material that cannot be scratched with a knife.