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RM2541 Palygorskite

#1991

Puigmal, Vall de Núria, Queralbs, Ripollès, Girona, Catalunya, Spain

Aggregates of palygorskite fibers, of an intense white color, shiny. It is identified as coming from the Núria valley, in the Catalan Pyrenees, at the foot of the Puigmal mountain. A classic locality where this mineral appeared between limestone rocks. It comes from the Joan Astor collection (Barcelona), with a handwritten label and another typewritten. m3om

Size: 9.3 x 4.5 x 2 cm.

Found in ±1975.

Col. J. Astor, Barcelona.

Classic locality

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RM2006 Tremolite

◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

- 9. Silicatos

#1609

Pic de l'Infern, Queralbs, Ripollès, Girona, Catalunya, Spain

Radiated aggregates of Tremolite from this classic Catalan locality. Specimens were found in a Cambrian-Ordovician marbles with calc-silicate levels. Outcrops at an altitude of 2700-2800 m, near Pic de l'Infern (Hell's Peak), 2870 m.

Size: 6.5 x 5.3 x 2.4 cm.

Main crystal: 1.8 cm.

Col. Manchion.

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