Bird's Eye Rhyolite 'Volcanic Universe' face mask

Bird's Eye Rhyolite from Chihuahua, Mexico Rock type: spherulitic rhyolite Photomicrograph: transmitted, cross-polarized light Mineral and color guide: glass groundmass: black quartz: white to black hematite: deep red We’re all trying to go the extra mile right now to stay safe and sanitary in the face of the global COVID-19 pandemic. These geology-inspired masks pass the 'candle test' (while wearing the mask, try to blow out a candle). The flame doesn't move, even without inserting an extra filter insert! However, you can add on a pair of PM2.5 filter to your order for an additional $2. Cover up with geo-printed face coverings and stay safe with a touch of science. Made from our soft and satiny 200 thread count 100% cotton sateen Available in 3 youth and 4 adult sizes to suit a variety of face shapes Internal pocket to accommodate a filter of your choice Stainless steel adjustable nose piece and soft fabric ear ties Printed with permanent reactive inks that won’t washout or fa