Rosell Minerales

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RM2967   Gmelinite and analcime

Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, United Kingdom

These aggregates of hexagonal gmelinite crystals are a classic of Northern Ireland mineralogy. In this specimen we can enjoy a vacuole covered by orange crystals, very well defined and brilliant. They are accompanied by small analcime crystals, richly faceted and transparent. Gmelinite specimens from this quarry were analyzed by X-ray fluorescence and SEM-EDS by Stephen Moreton. The results indicated that both gmelinite-Ca and gmelinite-Na are present and even zoned in the same crystal.

Size: 7.9 x 7.4 x 3.2 cm.
Main crystal: 4.3 mm.

Ex. Erich Laskowski col.