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Smoky Quartz & Microcline

Smoky Quartz & Microcline


This specimen is a great example of the highly mineralized geologic area in and around the Pikes Peak Batholith.  The natural smoky quartz has rich color and translucency, which contrasts well with the white microcline.


This specimen is shown mounted on the Small Acrylic Base with hot glue.  We will ship the item as-is, it can be remounted with putty or hot glue if it becomes detached.


Smoky quartz is a variety of quartz known for its characteristic smoky brown to gray coloration, caused by irradiation of clear quartz crystals during their formation.  The intensity of the smoky color can vary depending on the duration and extent of exposure to radiation.  It is found in various geological settings, including pegmatites, hydrothermal veins, and sedimentary rocks. It often occurs alongside other minerals, such as feldspar, mica, and tourmaline.  It can also be artificially irradiated, and in some cases this is not disclosed by the seller.   Collectors should use caution when purchasing smokey quartz because of this.


Microcline is a potassium-rich feldspar mineral belonging to the alkali feldspar group.  It is essentially the same composition as orthoclase and sanidine, differing only in its crystal structure.  Microcline crystallizes in the monoclinic crystal system, distinguishing it from orthoclase, which crystallizes in the orthorhombic system. This difference in crystal structure gives microcline its unique properties and appearance.

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