Top 10 Interesting Facts About Gemstones

The world of gemstones is incredible. And beautiful.

The Top Ten

1 Red Diamond receives its red color from radioactive radiation that deforms the crystal lattice without damaging it

Red Diamond is the rarest diamond variety because its formation requires a unique geochemical environment - some components must be present and available at the same location and time of crystal formation. Red diamond is found mostly in Africa, Australia and Brazil. - Metal_Treasure

Your gemstone lists are cool. - Userguy44



2 Goshenite (colorless beryl) is so transparent that the first eyeglasses were constructed in the 13th century in Italy with goshenite lenses, and eyeglasses in some languages were named for beryl - bril, Brillen, Briller

(Brillen in German, Briller in Danish and bril in Dutch) - Metal_Treasure

3 Blue Star Sapphire gets its star from needle-like rutile inclusions inside the gem also known as "rutile silk". Only 3 out of 100 rough sapphires have stars

Rutile is a crystal of titanium dioxide. - Metal_Treasure

Cool - darthvadern

4 Alexandrite changes its color depending on the type and intensity of light - it can be green at noon (daylight) and red at midnight (incandescent light)

That's why people say "Alexandrite is emerald at noon and ruby at midnight" - Metal_Treasure

5 Painite is the rarest gem mineral - for decades, only two painite crystals have been known to exist

In 2005 The Guinness Book of World Records described painite as the rarest gem mineral. - Metal_Treasure

I bet it would cost stupid money for a gem collector to get that in their collection.

6 Moissanite sparkles more than diamond

Also, moissanite hardness is 9.5/10 - the closest possible to diamond hardness, 10/10. - Metal_Treasure

7 Cullinan Diamond is the largest rough gem-quality diamond ever found

Weight - 621.350 g.
The Cullinan rough diamond produced 105 stones of various cuts and sizes.
It was discovered in South Africa in 1905 - Metal_Treasure

8 Andalusite exhibits different colors when observed at different angles

it's a W

9 Opal's multi-color appearance is just light interfering within the microstructure of the gem, no actual objects inside the stone

No actual objects inside, unlike Star Sapphire and Star Ruby that have rutile needles - Metal_Treasure

10 Benitoite fluoresces bright blue under short-wave ultraviolet light and red under long-wave ultraviolet light

Only some of them can fluoresce red though - Metal_Treasure

The Contenders

11 Emerald, Aquamarine, Morganite, Goshenite, Red Beryl (Bixbite) and several more gems are just different color varieties of Beryl

Emerald is deep green beryl, Aquamarine is pale blue beryl, Morganite is pink beryl, Goshenite is colorless beryl, and so on. - Metal_Treasure

12 Morganite was named after the famous American banker and gem enthusiast, John Pierpont Morgan

Morganite is the pink variety of beryl - Metal_Treasure

13 Tanzanite is only found in Tanzania, in the Mount Kilimanjaro region
14 Marquise Cut / Navette Cut / Football-shaped Cut was named for Marquise de Pompadour because King Louis XIV of France commissioned a diamond with this shape for her

That's the best cut / shape for me - its elongated shape flatters the finger, making it appear longer and slimmer. - Metal_Treasure

15 Russia is the biggest producer of diamonds in the world Russia, known as the "Russian Federation", was formed on Dec 25, 1991. It is located mainly in Asia, while a portion of it remains in Europe. The capital and largest city is Moscow, followed by Saint Petersburg in terms of population. The country primarily speaks Russian, a Slavic language. more.
16 Lapis Lazuli is technically a rock used as a gem
17 Sapphire can occur in all colors except red because the red variety of corundum was already called ruby

Sapphire and Ruby are almost identical gems - they are color varieties of the same mineral (corundum). Ruby can be described as red sapphire. - Metal_Treasure

18 Benitoite was named for San Benito County, California

And in 1985 benitoite was named as the official state gem of California. - Metal_Treasure

19 Most natural diamonds have ages between 1 billion and 3.5 billion years
20 Most diamonds were formed at depths of 150 to 250 kilometers (93 to 155 mi) in the Earth's mantle

But a few have come from as deep as 800 kilometers (500 mi) - Metal_Treasure

21 Diamond, Graphite and Coal are forms of carbon but they are so different
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