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RM3378   Quintinite-2H, Dolomite, Magnetite and Phlogopite

Group of orange quintinite crystals (quintinite-2H polytype, Mg₄Al₂(OH)₁₂(CO₃)·₃H₂O) disposed on a matrix with strontianite. Very rare species belonging to the hydrotalcite supergroup.

Size: 4.2 x 2.5 x 2.2 cm.
Main crystal: 2.5 mm.
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