At $270, the Kora Xenolith Yak & Merino Wool Mountain Sweater 2.0 represents the upper end of the base layer price range. But a little backstory helps take the edge off. Kora sources its yak wool ...

Here, we focused on the redox-sensitive behavior of sulfur in apatite crystallized from quenched alkaline basaltic melts preserved within a peridotite xenolith from the El Deseado Massif auriferous ...