conchoidal's Usage Examples:

a volcanic glass; however, unlike a glass, pitchstone has an irregular hackly fracture not a conchoidal fracture.

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

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

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

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

It has no planes of cleavage but fractures conchoidally, is clear or translucent and has a globular structure.

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

It is very brittle, and has a conchoidal fracture.

Pappus wrote: "Nicomedes trisected any rectilinear angle by means of the conchoidal curves, the construction.

Other conchoidal features include small fissures emanating from the.

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

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

Formula mass 60 g/mol Color Emerald green Cleavage Absent Fracture Uneven, splintery, conchoidal Mohs scale hardness 6 - 7 Luster Vitreous, dull, greasy, silky.