#STEMPartner Headed to the opal mine to dig for opals and brought @stemforbugs Insect Repellent with me to keep the mosquitoes away! The repellent provides up to 90 minutes of effective protection so I can focus on finding great gems without the mosquitoes. #STEMforBugs #scienceexperiments #sciencetok #mining #opal #opals #gemhunting #rockhounding #rockhound #camping