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#10RareandExpensiveGemstones
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10. Musgravite
There are more than 4,000 minerals that naturally occur on Earth. Many of these are almost impossible for most people to distinguish. A rock is a rock to most people. But some stones stand out. Humans love sparkly things, and luckily, some minerals and gemstones can be both pretty and rare—two things humans prize.
This means that some gemstones can be quite pricey if you want to get your hands on them. Here are some of the rarest and most expensive rocks you can spend your money on.
9.Alexandrite
It is always nice to have something named after you, so the Russian crown prince Alexander must have been happy to have this mineral named after him in 1830. Alexandrite was found in the Ural Mountains, and almost immediately, something strange was noticed about it. When looked at in daylight, the stone is a vibrant green, but by candlelight, it is a deep red. This led to it being described as “emerald by day, ruby by night.” Because red and green were the colors of the Imperial Russian flag, this effect gave the stone immense popularity in Tsarist Russia.
8. Benitoite
In 1907, a prospector named James M. Couch thought he had struck gold, or at least sapphire when he pulled rich blue gemstones out of the ground in the San Benito mountains of California. When he sent samples of the stones to a mineralogist, however, it was discovered that what Couch had found was a never-before-seen mineral. It was named Benitoite.
The stone was soon being mined through what was described as a “glory hole.” Because Benitoite is a fairly soft mineral, many of the gemstones were damaged by the miners as they extracted them. The rarity of Benitoite is due to the specific conditions that must exist for it to form. It only grows under high-pressure and low-temperature zones where tectonic plates meet. Benitoite is now the official gemstone of California.
A good one carat gem of Benitoite might cost $8000, but prices soon rise for larger stones because so few big stones are found
7. Grandidierite
Grandidierite is one of the rare minerals that displays what is known as pleochroism—it appears in different colors depending on the direction you look at it. It can reveal dark green, colorless, and dark blue hues just by turning it. This occurs because of how the atoms in the crystal lattice are arranged in three dimensions. Grandidierite was discovered in Madagascar in 1902 and has since been found in a number of other places, but few gemstones turn up on the open market.
6. Serendibite
Serendibite was discovered in 1902 in Sri Lanka and is named for the old Arabic name of that country. At first, Serendibite looks like a poor candidate for becoming a gemstone. Some can appear a shiny black color, but others have a rough and greyish exterior. Until 2005, only three faceted Serendibite gems were known to exist. They fetched around $14,000 per carat when sold.
5. Poudretteite
Many mineralogists would cry tears of joy if they discovered only the tiniest fragment of a never-before-identified mineral. That must have been the reaction when tiny crystals of Poudretteite were revealed to be new to science in 1986. But there was no hope that these beautiful pink crystals would ever be turned into gems, given their minuscule size. Then, in 2000, a remarkable stone was found.
4. Jadeite
The stone that is commonly called Jade is actually two minerals that look very similar. One, nephrite, has been used since prehistory to make jewelry and even tools.
3.Diaspore
Discovering a new type of gem happens more by accident than by skill. In the 1970s, workers at a bauxite mine in Turkey found that they were digging up annoying impurities. Bauxite is the useful ore that aluminum is purified from, so the miners who found crystals mixed in with it would pick them out so that the bauxite would remain pure. Little did they know that they were handling expensive and rare gemstones.
2. Taaffeite
Spinels have been prized in jewelry for hundreds of years. Because some are intensely red, they have sometimes been mistaken for rubies in the past. The Black Prince’s Ruby that sits in the British crown jewels today is actually a spinel.
1. Melo Melo Pearls
Not all gems are the product of millions of years beneath the Earth. For thousands of years, humans have sought out and gathered pearls. In the ancient world, pearls could be just as valuable as other gems. Today, thanks to the ability to cultivate pearls in oysters, a string of pearls is within the budgetary reach of most people—but only if they are ordinary pearls.
Because of this and their beauty, these pearls can fetch up to $700,000 at auction.