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Over the past month I have received quite a few emails from people telling me about the recent discovery of Tranquillityite in dolerite samples found in Western Australia. Long story short: three new minerals were discovered in the Apollo rock samples. These were Armalcoite, Pyroxferroite and Tranquillityite. The first two had since been found to occur naturally on the earth. But contrary to what I had previously heard, Tranquillityite had never been found in terrestrial rocks - that is until now. With the discovery of this mineral's terrestrial counterpart, it can officially be stated that all the minerals ever found in the Apollo samples occur naturally on the earth. Not to mention the fact that the proportions of which fall within the same ranges as terrestrial igneous rocks. In short, no real surprises at all.