Feldspar and Quartz Crystals

Just started photographing small specimens. This is a far greater challenge than taking pictures of hand sized rocks and minerals. Although I am not happy with the shot below, it is interesting.

Feldspar and quartz are the two most common minerals on the planet. The photograph shows feldspar with its “blocky crystal habit” and smoky quartz, with its six sided crystal form. Feldspar doesn’t get much love because its color isn’t exciting and because it is so common.

A mineral’s outward crystal expression is the manifestation of its inward atomic structure. If we were to peer inside feldspar at high magnification, we would see that feldspar’s atoms were arranged in the same blocky pattern that is exhibited on the outside. Provided one important thing.

Conditions must be right for crystals to develop into the shape you see here. Under poorer conditions, a lack of room for example, feldspar crystals would not express themselves and this specimen would be just another lump of dun colored rock. Quartz is often associated with feldspar.

More good information here:

https://www.esci.umn.edu/courses/1001/minerals/potassium_feldspar.shtml

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