Fracture - Conchoidal

Fracture - Conchoidal

Fracture - Conchoidal--curved, concentric breakage

  Fracture - Earthy

Fracture - Earthy

Fracture - Earthy--looks like broken soil

  Fracture - Hackly

Fracture - Hackly

Fracture - Hackly--jagged, uneven, sharp

  Fracture - Splintery

Fracture - Splintery

Fracture - Splintery--sharp, elongated, often in fibrous minerals

  Fracture - Uneven

Fracture - Uneven

Fracture - Uneven--rough, irregular, random

  Cleavage - 1 plane

Cleavage - 1 plane

Cleavage - 1 plane--mineral splits along 1 plane

  Cleavage - 2 planes

Cleavage - 2 planes

Cleavage - 2 planes--mineral splits along 2 parallel planes

  Cleavage - 3 planes

Cleavage - 3 planes

Cleavage - 3 planes--mineral splits along 3 parallel planes