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Kerstin Neuhaus

Both (Cu6(Si6O28*6H2O) and (Fe3(PO4)*8H2O) contain crystal water, but vivianite has more. Vivianite is much softer (Mohs 1,5-2) than dioptase (Mohs 5), and at least Cu keeps its valence when exposed to air.

Vote stable and green! Vote !

Sep 19, 2023, 05:49 PM·Public·Tusky
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