Share this entry

Share this page

conchoidal

Line breaks: con|choid¦al
Pronunciation: /kɒŋˈkɔɪd(ə)l
 
/

Definition of conchoidal in English:

adjective

chiefly Mineralogy
Denoting a type of fracture in a solid (such as flint) which results in a smooth rounded surface resembling the shape of a scallop shell.
Example sentences
  • It occurs on conchoidal fracture surfaces developed in clay and tuffaceous sandstone on the Green Velvet claims, Inyo County, and as ‘specimens’ on the Wakefield property near Pozo, San Luis Obispo County.
  • Quartz-grain microtextures have received particular attention, and many distinctive textural features, such as conchoidal fractures and stepped surfaces, have been classified.
  • The conchoidal fracture exhibited by chert and obsidian allows them to be shaped into sharp points and edges.

Definition of conchoidal in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day emulous
Pronunciation: ˈemyələs
adjective
seeking to emulate or imitate someone or something