Pearl vs Mons

Informations

A pearl is a hard, glistening object produced within the soft tissue (specifically the mantle) of a living shelled mollusk or another animal, such as fossil conulariids. Just like the shell of a mollusk, a pearl is composed of calcium carbonate (mainly aragonite or a mixture of aragonite and calcite) in minute crystalline form, which has deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes, known as baroque pearls, can occur. The finest quality of natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Because of this, pearl has become a metaphor for something rare, fine, admirable and valuable. The most valuable pearls occur spontaneously in the wild, but are extremely rare. These wild pearls are referred to as natural pearls. Cultured or farmed pearls from pearl oysters and freshwater mussels make up the majority of those currently sold.

Imitation pearls are also widely sold in inexpensive jewelry, but the quality of their iridescence is usually very poor and is easily distinguished from that of genuine pearls. Pearls have been harvested and cultivated primarily for use in jewelry, but in the past were also used to adorn clothing. They have also been crushed and used in cosmetics, medicines and paint formulations. Whether wild or cultured, gem-quality pearls are almost always nacreous and iridescent, like the interior of the shell that produces them. However, almost all species of shelled mollusks are capable of producing pearls (technically "calcareous concretions") of lesser shine or less spherical shape. Although these may also be legitimately referred to as "pearls" by gemological labs and also under U.S. Federal Trade Commission rules, and are formed in the same way, most of them have no value except as curiosities.

Source: Wikipedia

Informations

Mons (French pronunciation: ​[mɔ̃s]; Dutch: Bergen; German: Bergen; Picard: Mont; Walloon: Mont) is a Belgian city and municipality, and the capital of the province of Hainaut in the Walloon region. Mons was made into a fortified city by Count Baldwin IV of Hainaut in the 12th century. The population grew quickly, trade flourished, and several commercial buildings were erected near the Grand’Place. In 1814, King William I of the Netherlands increased the fortifications, following the fall of the First French Empire. The Industrial Revolution and coal mining made Mons a center of heavy industry. In 1830, Belgium gained its independence and the decision was made to dismantle the fortifications, allowing the creation of large boulevards and other urban projects.

On 23–24 August 1914, Mons was the location of the Battle of Mons. The British were forced to retreat and the town remained occupied by the Germans until its liberation by the Canadian Corps during the final days of the war. There are several memorial placards related to the WW1 battles. Today, the city is an important university town and commercial centre. The main square is the centre of the old city. It is paved in the manner of old cities and is home to many cafes and restaurants, as well as the town hall and belfry. It is forbidden to park in or drive through the centre. Together with the Czech city of Plzeň, Mons was the European Capital of Culture in 2015.

Source: Wikipedia