Here they are, petrological themed Christmas decorations for December 2019! This year we have (clockwise from top left) a green schist from the Cyclades, a basalt from Santorini, peridotite from Oman and essexite from Crawfordjohn, Scotland. The star is shonkinite from Shonkin Sag. Enjoy! Do post pictures of your geobaubles in use on Twitter (tag @R_Siddall) or Instagram (@ruthie.siddall) and use the hashtag #geobaubles2019
For best effect, print off two sheets, out out the shapes and glue them back to back to attain all-round petrology glamour!