hexagonal

As an adjective hexagonal

is (geometry) having six edges, or having a cross-section in the form of a hexagon.

As a noun afghanite is

(mineral) a hydrous hexagonal feldspathoid mineral of the cancrinite group.

As an adjective hexagonal

is (geometry) having six edges, or having a cross-section in the form of a hexagon.

As a noun berborite is

(mineral) a colorless trigonal or hexagonal mineral, with chemical formula be₂(bo₃)(oh,f)·(h₂o).

As an adjective hexagonal

is having six edges, or having a cross-section in the form of a hexagon.

As a noun zaccagnaite is

a white hexagonal mineral composed of zinc, aluminium, carbon, oxygen, and hydrogen.

As an adjective hexagonal

is (geometry) having six edges, or having a cross-section in the form of a hexagon.

As a noun empressite is

(mineral) a rare hexagonal mineral form of silver telluride.

As an adjective hexagonal

is having six edges, or having a cross-section in the form of a hexagon.

As a noun bazzite is

a beryllium scandium cyclosilicate mineral taking the form of small blue hexagonal crystals.

As an adjective hexagonal

is (geometry) having six edges, or having a cross-section in the form of a hexagon.

As a noun xifengite is

(mineralogy) a grey metallic hexagonal mineral.