Archive - March 21, 2022

PCVs rediscovered the ‘Blue Rock’

PCVs rediscovered the ‘Blue Rock’

  Larimar is a precious stone, unique in the world. What makes it one of the most mysterious gems in existence? Learn about the history and geology surrounding this treasure here. Larimar: discover the mystery of the ‘Blue Rock’! by Alfredo Graça Meteored Portugal Larimar is a rare gemstone, exclusive to the south-west of the Dominican Republic, a country on the island of Hispaniola, in the Caribbean. Geologically, it is a variety of pectolite, composed of an acid calcium-sodium silicate hydrate. It is formed through association with volcanic rocks (andesites and basalts) from the south of the island, originating from the Miocene, geological epoch (23 to 5 Million years ago). Although many pectoliths have been found in other parts of the globe, none have the colouration of larimar. The blue colour, distinct from other rocks, results from the replacement of copper with calcium. The story behind the discovery of this gemstone is . . .

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