Orbicular Sphalerite on Marcasite | Missouri Red fluorescent Natural citrine is generally a

Natural citrine is generally a more uniform pale yellow

and Oklahoma

5” x 1” and weighs 3

and is used in jewelry

This item is 4” x 3” and weighs 10

Orbicular Sphalerite on Marcasite | Missouri Red fluorescent Natural citrine is generally aSphalerite is a part of the sulfide group and typically exhibits a grey black appearance due to high concentrations of impurities. In its purest state, sphalerite's chemical composition is ZnS, and can display a gemmy transparent light tan yellow color. This is one of the few minerals that can form crystals ranging anywhere between gemmy and transparent to opaque and metallic like. Opaque or cloudy sphalerite tends to be most abundant since iron