Short answers, pulled from the story.
Swedish chemist Lars Fredrik Nilson discovered scandium in 1879 while examining minerals from Scandinavia under a spectroscope. He isolated two grams of pure scandium oxide from euxenite and gadolinite rocks during this process.
Estimates place scandium abundance at 18 to 25 parts per million within Earth's crust, making it the 50th most common element overall on our planet. It occurs only in trace amounts across many different minerals with concentrated sources remaining rare and geographically limited.
Global production reaches approximately 15 to 20 tonnes annually measured as scandium oxide. Three mines supplied the world market in 2003 including sites in Ukraine, China, and Russia, while facilities in the Philippines now contribute five tonnes per year.
Adding just 0.5% scandium significantly strengthens aluminium alloys used in aerospace components by limiting grain growth during welding heat zones creating smaller crystals. This process reduces volume at grain boundaries and inhibits plastic deformation to improve material performance.
Thortveitite found in Madagascar can contain up to 45% scandium oxide while euxenite and gadolinite serve as other known concentrated sources. Mining operations currently focus on extracting scandium as a byproduct rather than a primary target from these minerals.