Langimage
English

bassanite

|bas-sa-nite|

C2

/ˈbæsənaɪt/

calcium sulfate hemihydrate (mineral)

Etymology
Etymology Information

'bassanite' originates from New Latin, formed from a personal name component 'Bassan' (a surname used to honor a person) plus the mineral-forming suffix '-ite' (from Greek '-ites'), where '-ites' meant 'connected with' or 'belonging to'.

Historical Evolution

'bassanite' was coined in mineralogical/chemical literature in the 19th century to name the calcium sulfate hemihydrate phase; the term entered English mineralogical usage largely unchanged from its scientific coinage.

Meaning Changes

Initially it specifically named the natural mineral form of calcium sulfate hemihydrate; over time the term has also been used in technical contexts for synthetic hemihydrate forms (e.g., certain plasters), but its core sense as the hemihydrate mineral remains.

Meanings by Part of Speech

Noun 1

a mineral consisting of calcium sulfate hemihydrate, with chemical formula CaSO4·0.5H2O; commonly formed by partial dehydration of gypsum and occurring in arid environments or as an intermediate in industrial processes.

Bassanite forms when gypsum loses some of its water and is often found in dry soils and evaporite deposits.

Synonyms

Last updated: 2025/09/08 10:10