...from the Hadean epoch on Earth, contains quartz, feldspar, and zircon - minerals that are all commonly found on Earth but are ... the Moon, especially the quartz. "By determining the age of zircon found in the sample, we were able to pinpoint the age...
...Centre, Houston, US, lead author of a study published in Nature Communications. Contained within those chunks of rock where tiny zircon and monazite crystals that left a "shocked" imprint in them when the meteorite struck Earth. Monazite is a reddish...