It's a quarts. This isn't much info but maybe this will help
Amethyst is a form of quartz. Quartz belongs to the trigonal crystal system. The ideal crystal shape is a six-sided prism terminating with six-sided pyramids at each end.
Minerals crystals are divided into six systems depending on the relationships of length of axes and angles between axes. The six mineral crystal systems are: cubic, hexagonal, trigonal, tetragonal, orthorhombic, triclinic, and monoclinic.
Minerals owe their colors to the elements that comprise them, or from impurities that make their way into the crystal lattice. Occasionally their color is derived from the effects of proximity to radioactive elements. Crystals are divided into six different classes. Every mineral will form crystals that occur in one of these six classes. The geometric shapes that comprise these different classes of crystals occur because of the preferred arrangement of atoms within the lattice framework of any particular mineral crystal.
snow
Quartz
It's a quarts. This isn't much info but maybe this will help
Asterism
(3) Quartz
Quartz is not a salt; it is silicon dioxide, SiO2.
A hexagon is a six sided polygon but not necessarily you can hve other six sided figures
A six sided figure is called a hexagon.
dimensions for six sided hockey
the shape of six sided die is A cube.
A six-sided polygon is called a hexagon
A six-sided figure is called a 'hexagon.'
A six sided figure is called a hexagon, as "hex" means "six."