conchoidal fracture

It has a conchoidal fracture and does not show cleavage.

It has no cleavage and is brittle to conchoidal fracture.

Conchoidal fractures can also occur in other materials under favorable circumstances.

The mineral is brittle, with an uneven to conchoidal fracture.

It forms green to orange yellow masses with conchoidal fracture.

It has one direction of perfect cleavage and exhibits conchoidal fracture.

Its has a conchoidal fracture, a vitreous luster and a white streak.

Conchoidal fracture describes the way in which materials break when they do not follow the natural planes of separation.

This results in conchoidal fractures, a characteristic of all minerals with no cleavage planes.

As these materials lack natural planes of separation, conchoidal fractures occur when they are struck with sufficient force.

It has a relatively high specific gravity of 6.1, imperfect cleavage and a brittle to conchoidal fracture.

Its hardness is usually between five and six with two cleavage plains and conchoidal fracture.

They have a conchoidal fracture.

Cubic zirconia has no cleavage and exhibits a conchoidal fracture.

Like all glass and some other types of naturally occurring rocks, obsidian breaks with a characteristic conchoidal fracture.

Pimelite breaks with an uneven to conchoidal fracture, but it shows no cleavage.

It exhibits a conchoidal fracture.

Flint clay breaks with a pronounced conchoidal fracture and resists slaking in water.

They passed a dense basalt sculpted with conchoidal fractures like the sides of elephants' skulls.

Flakes had spalled away in a few places, leaving conchoidal fractures in the surface.

This produces microscopic conchoidal fractures as the abrasive rolls about between the two surfaces and removes material from both.

It breaks with an irregular to conchoidal fracture and it is somewhat sectile.

Subconchoidal fracture is similar to conchoidal fracture, but with less significant curvature.

It has a blocky sub conchoidal fracture, and is less fissile than shale.

There are two important characteristics when it comes to creating flake tools, cryptocrystalline and conchoidal fracture.