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- Natural Stones from Portugal : Proposal for harmonizing Commercial NamesPublication . Carvalho, Jorge; Carvalho, Cristina Isabel Paulo; Lopes, Luis; Silva, António; Santos, Catarina; Sousa, Luís; Martins, Ruben; Marques, CéliaABSTRACT: Over the years, the Portuguese Geological Survey – LNEG, has been dedicated to the characterization of Portuguese natural stones. Today, a newly updated LNEG web portal contains information on 149 natural stones, which are known by their unique trade names. Many of these names integrate the EN 12440 - Natural Stone - Denomination Criteria standard, but others do not. Furthermore, there many other names used to identify natural stones that are traded today and that do not integrate the LNEG web Portal or the EN 12440. This work presents a harmonization proposal for the commercial denomination of the Portuguese natural stones. It is a working basis for a final list that must be submitted to ISO/Technical Committee 118 – Natural Stones.
- Portuguese limestones from the Middle Jurassic of the MCE candidate for heritage stone [Resumo]Publication . Lopes, Luis; Carvalho, JorgeABSTRACT: The Monastery of Alcobaça (1152 AD), the Convent of Christ in Tomar (1160 AD) and the Monastery of Batalha (1386 AD), are classified as UNESCO World Heritage Sites, having in common the construction materials that built them - Limestones from the Middle Jurassic of the Estremenho Limestone Massif (MCE). The use of these rocks, first as a structural element and later as an ornamental rock, continues today. In fact, considering the volumes of ornamental rock exploited in Portugal, these rocks have the highest values and are exported annually to more than a hundred countries, playing a decisive role in placing Portugal in the top ten world exporters of ornamental rocks.