A previously unknown mineral has been discovered in a remote location in Western Australia. The mineral, named putnisite, appears purple and translucent, and contains strontium, calcium, chromium, sulphur, carbon, oxygen and hydrogen, a very unusual combination. While dozens of new minerals are discovered each year, it is rare to find one that is unrelated to already-known substances.... It appears as tiny semi-cubic crystals and is often found within quartz. Putnisite is relatively soft, with a <a href="https://www.wordnik.com/words/Mohs%20scale"; target=_blank">Mohs</a> hardness of 1.5 to 2 (out of 10), comparable to gypsum, and brittle. It's unclear yet if the mineral could have any commercial applications.