Holmquistite from Barraute, Quebec AND A zirconium-bearing garnet from Oka, Quebec

descriptionPublicationkeyboard_double_arrow_right Report , Other literature type 01 Jan 1960Publisher:Natural Resources Canada/CMSS/Information Management

Authors: E H Nickel; B S Karpoff; J A Maxwell; J F Rowland; E H Nickel;

doi: 10.4095/299896

Holmquistite from Barraute, Quebec AND A zirconium-bearing garnet from Oka, Quebec

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Abstract

A new occurrence of the rare lithium amphibole, holmquistite, has been discovered near Barraute, Quebec. It occurs at or near the contact of spodumene pegmatites and hornblende-rich rock. A chemical analysis indicates a composition close to Li2(Mg,Fe")3 m)2Si8022(OH)2. The holmquistite is orthorhombic, space group Di26hPnma, with (AI,Fe a = 18.30, b 17.69 and c = 5.30. The optical and physical properties are similar to those of other holmquistites cited in the literature.

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Fields of Science

natural sciences

Fields of Science

natural sciences

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