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Una grande punta di quarzo, pesante 55 chilogrammi, è stata rinvenuta la scorsa estate in Val Bedretto ed è ora esposta al Museo cantonale di storia naturale a Lugano.
Il cristallo, ora esposto al Museo cantonale di storia naturale
L'eccezionale cristallo è stato scoperto in margine a misurazioni effettuate lungo il fronte del ghiacciaio di Valleggia. Si tratta, come sottolinea una nota diffusa oggi, venerdì, dal Dipartimento del territorio (DT), di uno dei più importanti ritrovamenti di quarzo in Ticino
La regione di questo ghiacciaio è già rinomata sotto il profilo della mineralogia. Infatti alla Cima di Lago, esattamente 25 anni fa, era stato scoperto il più grande cristallo di quarzo, dal peso di 150 chili, mai trovato nel cantone.
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