Brewsterite-Sr, Wakefieldite-(Ce), and Associated Minerals From the Marron Volcanics of the Olalla Area, South-Central British Columbia, Canada.

The Marron Volcanics of South-Central British Columbia are host to a suite of zeolites and other minerals, the most significant of which are brewsterite-Sr and wakefieldite-(Ce). Tschernich ([28]) states that according to the nomenclature established by the IMA in Coombs et al. ([10]), and analysis information given to Tschernich in conversations with Wise, heulandite from "Yellow Lake" should be labeled heulandite-Ca. Tschernich ([26]) describes one exceptional vein 50 meters long and 0.5-2 cm wide in which one side was primarily covered with colorless brewsterite with calcite crystals and brown, acicular goethite; on the opposite side were grown proportionally equal amounts of "Sr-bearing heulandite", brewsterite, and calcite crystals. The Yellow Lake occurrence is the third recorded for the wakefieldite subgroup of minerals, after Wakefield, Quebec [wakefieldite-(Y)] and the Kusu mine, Democratic Republic of Congo [Pb-bearing wakefieldite-(Ce), formerly I kusuite i ]. [Extracted from the article]