How amazing are these beautiful rocks from my (birdapp) @SS_RockExchange Santa 🎅🏻 @rockdoctorkristy: rippled texture on late 1800s slag from Broken Hill, garnet+sill gneiss also from Broken Hill, and gorgeous pyrite and bornite from North Parkes, NSW! Thanks so much 😊 #geology #FreeRockFriday