About jewelry

Jewelry refers to ornaments that used to decorate individuals and related circumstances. Jewelry represents another significant way in which people costume themselves in the effort to self-define. Jewelry is truly an illustrator of the idea of self-definition simply because much of it is entirely non-functional. The rarer the material is made from, the more value it holds. Jewelry like this is used to mark important occasions because it was considered valuable.

Tuesday, February 7, 2017

Discovery of platinum

The metal was used by pre-Colombian Americans near modern-day Esmeraldas, Ecuador to produce artifacts of a white gold-platinum alloy.

It is one of the rarest elements on Earth’s crust and the least reactive. The discovery of platinum People first began to use platinum about 2,000 years ago in Egypt and South America. The Europeans did not find out about platinum until the sixteenth century, when the Spanish began their conquest of South America.

While searching for gold, Spanish conquistadors found heavy lumps of an unknown metal. They called the metal platina del Pinto, meaning ‘little silver of the Pinto River’.

The first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger as a description of an unknown noble metal found between Darien and Mexico.

In 1741, Charles Wood, a British metallurgists, found various samples of Colombian platinum in Jamaica, which he sent to William Brownrigg for further investigation.

Platinum was described in 1745 by Antonio de Ulloa (1716-1795), but he was prevented from publishing until 1748. Charles Wood independently described the metal in 1742 but it was not identified as a new element until 1750, when it was studied by William Watson (1715-1787).
Discovery of platinum

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