Yellowish-green aggregates of beaverite-(Cu), accompanied by globular groups of green osarizawaite crystals. From this classic Spanish mine.

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In this specimen we can observe several almandine garnet crystals included in a matrix with violet-blue cordierite crystals, the pleochroism of which can be observed on the edges. The specimen belonged to the Peter Seroka collection.

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A very rich mottramite specimen formed by a layer of minute crystals, very brilliant and with a deep olive green color, near to black on druses, visible only in isolated crystals. A really representative specimen from a classic Spanish gold mines locality.

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