This is based on the number of localities entered for mineral species and is therefore slanted towards minerals interesting to collectors with less coverage of common rock-forming-minerals so it does not give an undistorted distribution of Oxygen mineral species.
It has been legal to grow medical marijuana since 2010 in Arizona, which has about 88,000 patients qualified to obtain it from state-approved dispensaries. Patients must live more than 25 miles from a dispensary to grow their own pot. But there is a move to put a proposal to legalize marijuana on the ballot in 2016.
America is seeing green after a historic day for the legal marijuana industry. Seven states in all legalized marijuana in some form on Election Day. California, Maine, Massachusetts, and Nevada showed up to support recreational marijuana, while Arkansas, Florida, and North Dakota passed ballot initiatives legalizing medical marijuana. A recreational legalization proposal in Arizona brought the industry's only loss on Tuesday.