This category is for crystals in the hexagonal system, not for those in the trigonal system which is also part of the hexagonal family.
Subcategories
This category has the following 9 subcategories, out of 9 total.
This category is for crystals in the hexagonal system, not for those in the trigonal system which is also part of the hexagonal family.
This category has the following 9 subcategories, out of 9 total.