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Flos-ferri aragonite. Aragonite is one of the two common, naturally occurring crystal forms of calcium carbonate - the other being calcite. It is shown here in its branching stalactitic form known as flos-ferri (flowers of iron).
May 9th, 2013
Viewed 29 Times - Last Visitor from Bonn, 07 - Germany on 10/22/2014 at 12:25 AM
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