Crystal Systems

Hexagonal

All crystals have four axes. Three of the axes are the same length and intersect at 60 degree angles. The fourth axis is longer or shorter than the other three

Isometric (cubic)

All crystals have three axes if equal length. All axes intersect at 90 degrees.

Monoclinic

All crystals have three axes in different length. Two of the axes intersect at a 90 degree angle the third axis intersects the other twist an angle greater than 90 degrees

Tetragonal

All crystals have three axes that intersect at 90 degree angles. Two of the axes are equal length

Triclinic

All crystals have three unequal axes that make oblique angles with each other

Orthorhombic

All crystals have three axis. Each axis is different length. They all intersect eachother at 90 degree angles

Crystal system

Six basic systems in which minerals form in