Quartz veins with lazulite are embedded in the Carnic sericitic phyllites and metaconglomerates. The primary rocks were a succession of sands, clays and conglomerates, metamorphosed to the greenschists facies during a tectono-metamorphic event developed between 27 and 8 My.
Inside these rocks and the quartz veins, there are kyanite, pyrophyllite, chlorite and hematite; lazulite is present only inside some among them.
The mineralized quartz veins in phyllitic rocks and metaconglomerates are located on southern side of Mt Folgorito, in a locality named "Strinato" along the road from Strettoia Village that reaches Cerreta S. Nicola.
References
• Dini A., Bramanti A., Mancini S, Orlandi P., 1997. La lazulite del Monte Folgorito (Alpi Apuane), Pietrasanta, Lucca. Riv. Miner. Ital., 21: 171-178.
• Orlandi P., 1997. Zibaldone di mineralogia italiana. [Svanbergite]. Riv. Miner. Ital., 21: 182
Mineral List
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