Käännöksiä ei löytynyt valitulle kohdekielelle.
(mineralogy) A triclinic-pinacoidal mineral containing boron, oxygen, silicon, and sodium.
Colorless to yellow-orange, salmon-orange – Transparent, translucent – Vitreous – White – 2.776 – Biaxial (−) – Nα = 1.554 – Nβ = 1.565 – Nγ = 1.573 – 0.019 – 80° – None – Ti, Al, Fe, Mg, Ca, Ba, K, F, H2O, P.