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on December 27, 2023

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Do you know why pearls are so expensive?

Pearls have been a symbol of elegance and class for centuries. Pearls were worn by Maharajas of India and European queens as a symbol of their status. Celebrities walked the red carpet dripping in pearls at the Met Gala in 2018, which was inspired by the Catholic Church. Marie Antoinette's pendant was the most valuable pearl ever sold. It was auctioned for $32 million in 2018. But what is it that makes pearls so expensive? Marie Antoinette's pearl was part of a diamond-studded pendant, and it has important historical significance, which increased its value. But there are several other factors that determine the value of a pearl. It is probably the most complex gem to assess. The valuation of pearl determines by its state i.e. Natural and Cultured. Natural pearls are hard to find. They're rare, and this makes them worth more money. What is a natural pearl? and How do oysters make pearls? Formation of Pearl; Image credits: Researchgate.net Marine oysters and freshw...

Melting and breaking of glacier content at Antarctica regions!

After reaching the lowest extent ever measured in the satellite record in late February 2022, sea ice around Antarctica began to rebuild. On a smaller scale, however, the transition from melting to freezing can be abrupt. In March, for example, a patch of old sea ice near the Land Glacier in West Antarctica broke away as new ice formed. Part of the glacier's ice tongue crumbled at the same moment. Recent status of glacier, image credits: Nasa earth Michael Lowe, an analyst at the United States National Ice Center, has been keeping a careful eye on this stretch of the Antarctic coast known as Marie Byrd Land. Lowe stated, "I've been keeping a watch on that area for the previous two months as a significant section of extremely old fast ice began to break apart." "I saw the tip of the Land Glacier was starting to break off while comparing two SAR photographs from consecutive days." The changes may also be seen in this set of natural-color photos taken by the M...

Sinkholes; how do sinkholes form?

Imagine the ground beneath your feet or your house suddenly collapsing and forming a large hole in the ground. It's a terrifying thought. Sinkholes are uncommon, but when they do develop, they can be fatal. Sinkholes form when the ground underneath the land surface is unable to support it. Sinkholes can occur for a variety of causes; continue reading to learn more about them. Sinkholes are widespread in areas where the geology beneath the land surface contains limestone, carbonate rock, salt beds, or rocks that can be dissolved naturally by groundwater passing through them. Underground caves and caverns form as the rock degrades. Sinkholes are spectacular because the land normally remains intact for a long time until the subsurface areas get too large. A abrupt collapse of the ground surface can occur if there is insufficient support for the land above the voids. Formation of sinkhole; Image credits - cartleton.edu What is a "sinkhole"? When it rains, water stays inside t...

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