conchoidal's Usage Examples:

with conchoidal fractures; Double-faceted, a variety of multifaceted, prepared platform, also characteristically flat and associated with conchoidal fractures;.

to conchoidal fracture, but with less significant curvature.

(Note that obsidian is an igneous rock, not a mineral, but it does illustrate conchoidal fracture.

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

chalcedony, chrysoprase has a hardness of 6–7 on the Mohs hardness scale and a conchoidal fracture like flint.

Knapping is the shaping of flint, chert, obsidian or other conchoidal fracturing stone through the process of lithic reduction to manufacture stone tools.

using cryptocrystalline materials that fracture in an easily controlled conchoidal manner.

It has a conchoidal, uneven fracture, and an orthorhombic crystal system.

Charoite is strictly massive in nature, and fractures are conchoidal.

It has a brittle to conchoidal fracture and indistinct cleavage.

It is metallic black to steel black with no cleavage and a brittle to conchoidal fracture.

it has a vitreous or pearly luster; a hardness of 5–6 and an uneven conchoidal fracture.

components allow for good knapped pieces, much like working chert, producing conchoidal fracture.

1, imperfect cleavage and is brittle to conchoidal fracture.

It has a vitreous luster and a conchoidal to uneven fracture.

Pezzottiate is brittle with a conchoidal to irregular fracture, and streaks white.

waxy/greasy and then dull and opaque; they are brittle and break with a conchoidal fracture.

cores appear and are different from regular flaking cores, as each core's conchoidal nature is suited for different types of flaking.

It is very brittle, and has a conchoidal fracture.

It has very poor cleavage and is brittle to conchoidal fracture.