mazzite
/ˈmazʌɪt/Mineralogy
noun
A zeolite with a chemical composition approximating K2Mg2Ca1.5Al9.5Si25.5O72·28H2O, which crystallizes in the hexagonal system and occurs naturally as clusters of minute needles inside cavities in igneous rocks.
Origin
1970s. From the name of Fiorenzo Mazzi (b. 1924), Italian mineralogist + -ite.