chabazite
Học thuậtThân thiện
Definition
Noun: A group of minerals belonging to the zeolite family, characterized as a hydrous silicate of calcium and aluminum. It typically occurs as rhombohedral crystals and is found in cavities in basaltic rocks.
Examples of Usage
- Geologists identified the white, glassy crystals in the volcanic rock as chabazite.
- The sample contained several zeolites, including chabazite, which is valued for its ion-exchange properties.
- Chabazite forms in the vesicles of ancient lava flows.
Advanced Usage
- In scientific contexts, specific varieties of chabazite may be distinguished, such as chabazite-Ca or chabazite-Na, based on the dominant extra-framework cation (calcium or sodium).
- The term is used in material science when discussing natural chabazite as a molecular sieve for gas separation or catalysis.
Variants and Related Words
- Zeolite (n): The broader family of hydrated aluminosilicate minerals to which chabazite belongs.
- Hydrous silicate (n): A general term for silicate minerals containing water molecules within their crystal structure.
Synonyms
- There are no direct common-language synonyms. In technical mineralogy, it may be referred to by its specific variety names (e.g., chabazite-Ca) or its obsolete name, acadialite.
Related Phrases
- Zeolite family: The group of minerals with similar crystalline, porous structures.
- Molecular sieve: A material with pores of uniform size, a property for which chabazite is studied.
Noun
- a group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum