Druzy agate
A cluster of crystals clustered on the same substrate with one end facing free space,we call it druzy agate.Crystals with a direction of elongation in the druzy agate that is nearly perpendicular to the base tend to develop larger and better because they first get a space for free development,the growth of crystals that in other directions is hindered by the former type of crystal and cannot be fully developed,this is the geometric elimination law of crystal growth.Druzy agate is the main source of many gems minerals. In addition, many druzy agate have also been selected as ornamental stones.