There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
kaolinite
(noun) a mineral consisting of aluminum silicate; main source of kaolin
Source: WordNet® 3.1
kaolinite (countable and uncountable, plural kaolinites)
(mineral) A common hydrous aluminosilicate mineral found in sediments, soils and sedimentary rocks, Al2Si2O5(OH)4; one of the kaolin group of minerals.
Source: Wiktionary
29 May 2025
(adjective) characterized by careful evaluation and judgment; “a critical reading”; “a critical dissertation”; “a critical analysis of Melville’s writings”
There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.