Description
Water clear trigonal habit quartz crystal with unique starbrary glyphs and markings. There is a record keeper on the largest face. Very unique crystal and far more beautiful than is captured in the photos.
Size: 93 x 30 x 30 mm. 84 grams
From: Corinto, Minas Gerais, Brazil
The term "trigonal" stands for a threefold rotational symmetry. Although quartz is trigonal by itself, certain crystal shapes make this more obvious. The most common trigonal habit is one where crystals lack z rhombohedral faces. The rhombohedral z-faces generally tend to be smaller than r-faces, and sometimes they are completely absent.