Pearl vs Stirling

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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

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Stirling (; Scots: Stirlin; Scottish Gaelic: Sruighlea [ˈs̪t̪ɾuʝlə]) is a city in central Scotland, 26 miles (42 km) north-east of Glasgow and 37 miles (60 km) north-west of the Scottish capital, Edinburgh. The market town, surrounded by rich farmland, grew up connecting the royal citadel, the medieval old town with its merchants and tradesmen, the Old Bridge and the port. Located on the River Forth, Stirling is the administrative centre for the Stirling council area, and is traditionally the county town of Stirlingshire. Proverbially it is the strategically important "Gateway to the Highlands". It has been said that "Stirling, like a huge brooch clasps Highlands and Lowlands together". Similarly "he who holds Stirling, holds Scotland" is often quoted. Stirling's key position as the lowest bridging point of the River Forth before it broadens towards the Firth of Forth made it a focal point for travel north or south.When Stirling was temporarily under Anglo-Saxon sway, according to a 9th-century legend, it was attacked by Danish invaders. The sound of a wolf roused a sentry, however, who alerted his garrison, which forced a Viking retreat. This led to the wolf being adopted as a symbol of the town as is shown on the 1511 Stirling Jug.

The area is today known as Wolfcraig.Even today the wolf appears with a goshawk on the council's coat of arms along with the recently chosen motto: "Steadfast as the Rock".Once the capital of Scotland, Stirling is visually dominated by Stirling Castle. Stirling also has a medieval parish church, the Church of the Holy Rude, where, on 29 July 1567, the infant James VI was anointed King of Scots by Adam Bothwell, the Bishop of Orkney, with the service concluding after a sermon by John Knox. The poet King was educated by George Buchanan and grew up in Stirling. He was later also crowned King of England and Ireland on 25 July 1603, bringing closer the countries of the United Kingdom. Modern Stirling is a centre for local government, higher education, tourism, retail, and industry. The mid-2012 census estimate for the population of the city is 36,440; the wider Stirling council area has a population of about 93,750.One of the principal royal strongholds of the Kingdom of Scotland, Stirling was created a royal burgh by King David I in 1130. In 2002, as part of Queen Elizabeth's Golden Jubilee, Stirling was granted city status.

Source: Wikipedia