Wulfenite
Wulfenite is a secondary lead (Pb) mineral, which means it is formed during the oxidation (weathering) of galena, the primary lead mineral. Because wulfenite contains lead, it's pretty heavy for having such thin and delicate crystals! Those crystals are tetragonal and usually found as tabular, flat, square plates also a rare secondary mineral and very beautiful gem. It is rare because crystals are usually small, tabular and thin, it is one of the most beautiful gemstone on earth. found in the United States, collectors can find several places were fine specimens of Wulfenite can be found. Arizona, Washington, Montana, New Mexico, Colorado, and California are the best places to look for Wulfenite. The most valuable specimens for collectors are primarily found in Arizona.
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