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Mineral Specimen #6541    K-Feldspar variety: Valencianite, Quartz, minor Milarite

Mina Valenciana, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico

17.1 x 11.8 x 5.1 cm
6.7 x 4.6 x 2 in



Valencianite was at one time considered a distinct species of Feldspar. It was later discredited; however, there is a note on mindat that recent research suggests it may indeed be a distinct species of K-Feldspar. On the specimen, the Valencianite crystals are mostly covered with white colored Quartz crystals. The Quartz crystals are clear to white in color and are, in places, in acicular clusters. Down near the bases of the Quartz and Valencianite, there is some minor, massive, yellow/green colored Milarite crystals.

Condition: Very Good

Flaws: A few of the smaller Quartz crystals are broken and a couple of the terminations of some of larger Quartz crystals have very minor chips.

This mineral is also found in the following galleries: Minerals From Mexico | Tectosilicates | Quartz | Cyclosilicates | Minerals Priced Between 50 and 99 Dollars