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Opal | #Geology #GeologyPage #Minerals #Slovakia Locality: Cervenica, Presov Co, Presov Region, Slovakia, Europe Dimensions: 5.4 × 8.3 × 5.5 cm Photo Copyright © Crystal Classics Geology Page https://t.co/AtopGLUrSh... See more

Norway just found more high grade phosphorus rock than the rest of the world put together!!!???? 70 billion tonnes of proven reserves! 1.25X more than Morocco 20X more than China. https://t.co/IWLTrfcrC1... See more

In 1824, a new silicate mineral was discovered in the town of Cummington, Massachusetts. It was ultimately given the name CUMMINGTONITE. https://t.co/s77lNYh4j6

Not making any bold claims about cavities magically filling in, but here are two fluoride-free products that may help remineralize teeth: one contains Hydroxyapatite, and the other features Recaldent. https://t.co/IEAldQLtNM