There are more than 4,000 minerals that naturally happen on Earth. Many of these are practically difficult for the majority of people to differentiate. A rock is a rock to the majority of people. Top 10 Most Expensive Gemstones In The World Some stones stand out. People love sparkly things, and thankfully, some minerals and gemstones can be both quiet and rare– two things humans prize.
This means that some gemstones can be rather costly if you wish to get your hands on them. Here are a few of the rarest and most pricey rocks you can invest your cash on.
It is constantly nice to have something named after you, so the Russian crown prince Alexander must have been happy to have this mineral called after him in 1830. Alexandrite was discovered in the Ural Mountains, and nearly instantly, something unusual was seen about it. When taking a look at in daylight, the stone is a dynamic green, but by candlelight, it is a deep red. This led to it being described as “emerald by day, ruby by night.” This effect offered the stone enormous appeal in Tsarist Russia because red and green were the colors of the Imperial Russian flag. Because of both the method the crystal absorbs light and because of how the human eye finds green and red light.
The color change takes place. For this uncommon and shocking residential or commercial property, the cost of Alexandrite was, and stays, high. For a stone that displays 2 clear and unique colors, you may have to pay $70,000 per carat. 
Top 10 Most Expensive Gemstones In The World
Musgravite is one of the rarest of all the minerals that can be developed into gems. It was first discovered in the Musgrave Series of mountains in Australia in 1967. In its raw state, it appears like a shiny grey mineral however not actually one worth setting into fashion jewelry. Because of its discovery, the mineral has been found in some hard-to-reach locations like Antarctica and Greenland, and it would have stayed a simple mineralogical curiosity were it not for discovery in Tasmania.
There, a few crystals of Musgravite that could be cut and polished were collected. Most of the gemstone-quality Musgravite gems that have actually appeared on the market appear either a greyish olive green or slightly violet color. One has actually been found that consisted of little tube-shaped additions that show color with a vivid iridescence.
How much will this drab stone set you back? Rates for the very best quality Musgravites can reach $35,000 per carat. 
Grandidierite is among the unusual minerals that show what is referred to as pleochroism– it appears in various colors depending upon the instructions you take a look at it. It can reveal dark green, colorless, and dark blue colors simply by turning it. Because of how the atoms in the crystal lattice are organized in 3 dimensions, this takes place. Grandidierite was found in Madagascar in 1902 and has since been discovered in a number of other places, but few gemstones show up on the open market.
A lot of Gradidierite that is collected is opaque and misty, but a few clear examples have been drawn out near the website of the initial discovery. It is only given that 2015 that the gemstone Gradidierite has appeared on the free market in any amount. Only 300 carats of clear Gradidierite have actually been produced.
The extremely first gemstone-quality Grandidierite was offered in 2003 and cost $50,000, though it weighed just 0.29 carats. 
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