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RM3088   Hydromagnesite

Montecastelli Pisano, Castelnuovo di Val di Cecina, Pisa, Toscana, Italy

Specimen of hydromagnesite formed by various globular aggregates of lanceolated and transparent crystals of this magnesium hydroxylcarbonate. They stand out for their contrast with the ophiolitic rocky matrix. It is not very common to find specimens from this Italian locality.

Size: 5.7 x 4.4 x 3.4 cm.