Instructions: Answer questions 36 to 40 based on the following text.

‘Alien’ minerals never found on Earth identified in meteorite

1. While generations of camel herders of El Ali town in Somalia had known about the
2. meteorite, which is the ninth largest ever found, it wasn’t scientifically documented until a few
3. years ago. The oddly smooth rock caught the eye of prospectors, and when they hit it with a
4. hammer, a metallic tone resounded. They suspected it was an iron meteorite — an object from
5. space largely made of iron and nickel, many of which are believed to have come from the cores
6. of smashed asteroids or planetesimals, similar to our own planet's metallic center.
7. The prospectors sent small samples of ___ meteorite to scientists for confirmation and
8. further analysis, and ___ piece fell into ___ hands of Chris Herd, curator of the meteorite
9. collection at the University of Alberta. While studying the slice of rock, he noticed several crystals
10. with unusual compositions. Later analysis, including a comparison to synthetically created
11. minerals, confirmed his hunch: the composition and structure of the minerals had never been
12. seen before in nature.
13. Herd named one mineral elaliite, after the meteorite itself, and the second elkinstantonite,
14. after Lindy Elkins-Tanton, a planetary scientist at Arizona State University. Chi Ma, a meteorite
15. mineralogist at the California Institute of Technology who has previously discovered dozens of
16. new minerals, identified the third mineral, calling it Olsenite to honor the late Edward Olsen, a
17. former curator at the Field Museum of Natural History in Chicago.
18. Our planet has roughly 5,800 minerals, while only about 480 have been found in
19. meteorites. Many of those meteoritic minerals are truly alien — some 30 percent don't form
20. naturally on Earth. Studying the mineralogy of meteorites is "armchair solar system exploration,
21. in a lot of ways", Herd says. "We're trying to constrain the variety of conditions that have existed
22. within different planetary bodies".

Adapted from: https://www.nationalgeographic.com/magazine/article/alien-minerals-never-found-on-earth-identified-in-meteorite