'Mount Dust'

When astronauts came back on the apollo ofa mission, they brought back with them around forty nine pounds of lunar material. Scientists ground the rocks into dust and then got it into the animals in a number of different ways for 28 days. The samples did not turn up any moon microbes either, assuring the scientists that the samples were probably not dangerous. They kept doing this until apollo 14 in 19 71, after which they stopped taking moon dust and sampling animals with it. Then any emever lick it? Somebody's licked there. Would you like to lick the lickin rock?

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Igneous, sedimentary, metamorphic... need I say more? Welcome to SciShow Tangents or, as I like to call it, Rock Talk.

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[Trivia Question]

Stonehenge sarsen vs. Dwayne “The Rock” Johnson

https://www.livescience.com/22427-stonehenge-facts.html

[Fact Off]

Microgranite used for curling stones

http://nora.nerc.ac.uk/id/eprint/505002/

https://earthobservatory.nasa.gov/images/91856/ailsa-craig

https://olympics.com/en/news/the-remarkable-properties-and-origins-of-the-olympic-curling-stone