Flexibility is not a trait usually associated with rocks, but there is one notable exception to the rule – itacolumite, a porous sandstone that becomes flexible when cut into thin strips.

Itacolumite is named after the place where it was originally discovered, the Pico do Itacolomi rock formation in Minas Gerais, Brazil, but it can also be found in other places around the world, such as Georgia and North Carolina in the US, and Kaliana village in India. This rock is commonly used as a construction stone; because of its good partition, it can be shaped into plates about 1 cm thick and up to 20 cm long that are then used mostly as a floor or wall revetment. However, when cut into thin strips of only a few centimeters, it displays extreme flexibility that has fascinated geologists for decades.

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UK-based supermarket Waitrose has been slammed by social media users for selling bouquets of “autumn seasonal foliage” at £6 ($7.5) apiece.

Photos of various tree leaves packaged in transparent plastic foil and arranged as flower bouquets went viral on social media this week, sparking controversy because of the product’s price, six British pounds, of seven and a half dollars. Considering tree leaves can literally be picked up from the street this time of year, it’s understandable that some people went after Waitrose, accusing the supermarket of trying to make money by selling something that is actually free.

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