Amazonite Point with quartz deposit

This particular Amazon iPhone has clear quartz deposits..  which make it good for observations!

Its name is derived from the Amazon River, however, no deposits have been found there. Amazonite has been found in Russia, Madagascar, Brazil and the U.S. (Virginia, Colorado), and elsewhere.

Amazonite, also known as Amazon stone, is a green tectosilicate mineral, a variety of the potassium feldspar called microcline. Its chemical formula is KAlSi₃O₈, which is polymorphic to orthoclase.

Color: Green, Blue, Purple, Grey

Luster: Vitreous

Crystal system: Triclinic crystal system

Chemical formula: KAlSi₃O₈

Hardness (Mohs hardness scale): 6 – 6.5

Mineral class: Microcline

Transparency: Opaque, Translucent