magnesioriebeckite
/maɡˌniːziəʊˈriːbəkʌɪt/ /maɡˌniːziəʊˈriːbɛkʌɪt/Mineralogy
noun
An amphibole mineral occurring as elongated or asbestos-like dark blue fibres.
- Magnesioriebeckite is a variety of riebeckite in which some of the iron is replaced by magnesium, Na2(Mg,Fe+2)3Fe2 +3Si8O22(OH)2. Crystal system: monoclinic..
Origin
1950s. From magnesium + -o- + riebeckite.
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