Microcline

specimen number:
2102079

location:
Jefferson Co., Montana, USA

description:
A loose colorless thick blocky terminated Baveno twin crystal of microcline. In great condition.

Baveno twinning is a common type of crystal twinning observed in the feldspar mineral microcline. It is named after Baveno, Italy, where this twin form was first described. In Baveno twins, two crystals are joined along a specific crystallographic plane, producing a symmetrical V shaped or elbow like arrangement. This twinning is frequently seen in alkali feldspars found in granites and pegmatites, and it can create distinctive crystal shapes that are easily recognized by mineral collectors.

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