Definition of chiastolite in English:

chiastolite

noun

mass noun
  • A form of the mineral andalusite containing carbonaceous inclusions giving a cross-shaped appearance.

    • ‘The chiastolite crystals are as much as 0.15 mm. in diameter, and twice as much in length.’
    • ‘Andalusite is orthorhombic, crystallizing as elongate square prisms which at low temperature have a conspicuous cross-shaped arrangement of dark inclusions giving the variety chiastolite.’
    • ‘In the physical realm, chiastolite is used for healing rheumatism, blood disorders, veins, blood circulation, balance of blood pressure (high or low), lactation (breast milk) and rheumatism.’

Origin

Early 19th century: from Greek khiastos ‘arranged crosswise’ + -lite.

Pronunciation

chiastolite

/kɪˈastəlʌɪt//kʌɪˈastəlʌɪt/