Definition of chalcedony in English:
noun (plural chalcedonies)
A microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper.
- Common cements include clay minerals such as kaolinite, montmorillonite, or illite; quartz or chalcedony; iron oxides such as haematite; or calcite.
- Vein minerals are barite, calcite, chalcedony, and quartz.
- The shoots and stalks themselves are casts composed of combinations of chalcedony, quartz, calcite, and barite.
- Example sentences
- The Main vein is 7-8 feet thick, extends for 300 feet along strike, and consists of chalcedonic quartz.
- There is no chalcedonic quartz anywhere within or on the specimen.
- The formation is composed largely of dark limestone and dolomite, and contains black chalcedonic chert in fine laminated layers, a piece of which is displayed near the bottom of this page.
Definition of chalcedony in:
- British & World English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia
Most popular in India
Most popular in Pakistan