1. The term used in the Folk classification to describe the micrite matrix and sparry calcite (sparite) cement in limestones.
2. Applied to rocks consisting of micrite without allochemical particles (see ALLOCHEM).
3. Applied to a carbonate particle formed by direct chemical precipitation.
"orthochemical." A Dictionary of Earth Sciences. . Encyclopedia.com. (January 21, 2019). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/orthochemical
"orthochemical." A Dictionary of Earth Sciences. . Retrieved January 21, 2019 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/orthochemical