A break or chip, caused by stress, that is in any direction other than parallel to the planes of atoms in a crystalline mineral. The most common type of fracture appears shell like and is called conchoidal.
|1.||Conchoidal Fracture||Has a curved shell-like appearance. This is the most commonly occurring type of fracture.|
|2||Even Fracture||These are smooth in appearance but without the single plane regularity of cleavage. This can be seen in some types of quartz.|
|3.||Uneven Fracture||Similar to the edge of broken pottery. This can be found in most all minerals and rocks.|
|4.||Splintery Fracture||This is usually observed in nephrite and hematite. Sometimes this is referred to as fibrous.|