Stone Fever: Erebus Tales, Book I
Norman Westhoff, author
In 24th century, geologist Keltyn SparrowHawk flies to ice-free Antarctica to scout for the strategic mineral iridium, and finds a tribe of nomadic cattle-herders. She befriends a young horsewoman, also searching for the iris stone, from which her mother makes jewelry. Despite dangers, they climb a nearby volcano to find the stone. Mortal perils await on the mountain, with the tribe, and back home.