Definition of Conchoidal. Meaning of Conchoidal. Synonyms of Conchoidal

Here you will find one or more explanations in English for the word Conchoidal. Also in the bottom left of the page several parts of wikipedia pages related to the word Conchoidal and, of course, Conchoidal synonyms and on the right images related to the word Conchoidal.

Definition of Conchoidal

Conchoidal
Conchoidal Con*choid"al, a. [Cf. F. concho["i]dal.] (Min.) Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.

Meaning of Conchoidal from wikipedia

- conchoidal fracture is a break or fracture of a brittle material that does not follow any natural planes of separation. Mindat.org defines conchoidal...
- fractures are recognized in mineralogy: conchoidal, earthy, hackly, splintery (or fibrous), and uneven factures. Conchoidal fracture breakage that resembles...
- Knapping is the shaping of flint, chert, obsidian, or other conchoidal fracturing stone through the process of lithic reduction to manufacture stone tools...
- chrysoprase has a hardness of 6 to 7 on the Mohs hardness scale and a conchoidal fracture like flint. The best known sources of chrysoprase are Indonesia...
- isometric-hexoctahedral class. It has very poor cleavage and is brittle to conchoidal fracture. It is quite soft, with a Mohs hardness of 1.5 to 2, and it has...
- other naturally occurring rocks, obsidian breaks with a characteristic conchoidal fracture. It was also polished to create early mirrors. Modern archaeologists...
- pearly luster. Charoite is strictly m****ive in nature, and fractures are conchoidal. It has an unusual swirling, fibrous appearance, sometimes chatoyant,...
- translucent with an adamantine lustre. It is very brittle, and has a conchoidal fracture. It has a Mohs hardness of 3 to 3.75 and a specific gravity of...
- natural volcanic gl****, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite, this variety of...
- producing stone tools. As these materials lack natural planes of separation, conchoidal fractures occur when they are struck with sufficient force; for these...