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A conchoidal fracture is a break or fracture of a brittle material that does not follow any natural planes of separation. Mindat.org defines conchoidal fracture as follows: "a fracture with smooth, curved surfaces, typically slightly concave, showing concentric undulations resembling the lines of growth of a shell". [1]
- Fracture
In brittle crystalline materials, fracture can occur by...
- Fracture (mineralogy)
Conchoidal fracture breakage that resembles the concentric...
- Fracture
Figure 3.61 shows a sample of quartz displaying conchoidal fracture. Other kinds of fracture include even fracture , hackly fracture, splintery fracture , and others. The terms we use to describe fracture and cleavage are plentiful; the most commonly used terms are defined in the tables below.
Conchoidal fracture is a smoothly curving fracture surface of fine-grained materials which have no planar surfaces of internal weakness or planes of separation (no cleavage). Such a curving fracture surface is characteristic of glass and other brittle materials with no crystal structure.
Fracture, in mineralogy, appearance of a surface broken in directions other than along cleavage planes. There are several kinds of fractures: conchoidal (curved concavities resembling shells—e.g., flint, quartz, glass); even (rough, approximately plane surfaces); uneven (rough and completely.
28 ago 2017 · Conchoidal fracture is a specific type of brittle fracture which is observed in fine-grained or amorphous materials such as rocks, minerals and glasses. The solid material breaks by cleavage but does not follow any natural planes of separation.
