The green gemstone peridot information and pictures

The ancient Egyptians mined peridot on the Red Sea isl& of Zabargad, the source for many large fine peridots in the world’s museums. The Egyptians called it the “gem of the sun.” Today this gem is still prized for its restful yellowish green hues and long history. Large strongly-colored, examples can be spectacular, và attractive smaller gems are available for jewelry at all price points.

Peridot Description

Peridot History & Lore

Birthstones và Anniversaries

Peridot is the birthstone for August and the 15th anniversary gemstone.

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4.5 billion

Some peridot is ancient: it's found in pallasite meteorites, remnants of our solar system's birth.

Stardust

In 2005, peridot was found in comet dust brought baông xã from theStardust robotic space probe.

Olivine

Gem variety of the mineral olivine: found in peridotite rochồng from theearth’s upper mantle.


Facts

Mineral: Olivine Chemistry: (MgFe)2SiO4 Color: Yellowish green Refractive index: 1.65 to lớn 1.69 Birefringence: 0.035 khổng lồ 0.038 Specific gravity: 3.34 Mohs Hardness: 6.5 khổng lồ 7

Treatments

There are a number of processes used to alter the color, apparent clarity, or improve sầu the durability of gems.

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Synthetics

Some gemstones have sầu synthetic counterparts that have sầu essentially the same chemical, physical, & optical properties, but are grown by man in a laboratory.

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Imitations

Any gem can be imitated—sometimes by manmade materials or by natural materials chosen by man lớn impersonate a particular gem.

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Why We Love sầu This Gemstone
1 Extraterrestrial

Peridot crystals are found in meteorites: some rare extraterrestrial crystals are even big enough lớn facet as cut gemstones.


2 Iron Gem

Most gems are colored by impurities such as iron. Peridot's color is intrinsically yellow-green. Higher-chất lượng stones have sầu an intense color.

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3 Seeing Double

Peridot has extremely high double refraction: when you look closely through the gem, you can see two of each pavilion facet.


Color

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Although the best peridot is a pure grass green, most peridot is yellowish-green.


Clarity

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Most fine peridot is eye clean. Tiny blaông chồng spots might be visible with magnification.


Cut

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Peridot is cut in a wide variety of styles, including ovals, emerald cuts, và cushions.


Carat Weight

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Large crystals of peridot have sầu cut gems more than 50 carats in kích thước.


Peridot from the Central Highlands of Vietnam: Properties, Origin, và Formation

Nguyen Thi Minch Thuyet, Christoph Hauzenberger, Nguyen Ngoc Khoi, Cong Thi Diep, Chu Van Lam, Nguyen Thi Minh, Nguyen Hoang, và Tobias Häger , Nov 7, năm nhâm thìn Read Article

Identification of Extraterrestrial Peridot by Trace Elements

Andy H. Shen, John I. Koivula, & James E. Shigley Read Article

Characterization of Peridot from Sardinia, Italy

Ilaria Adamo, Rosangela Bocchio, Alessandro Pavese, & Loredana Prosperi , Jun 1, 2009 Read Article

The Creation of a Magnificent Suite of Peridot Jewelry: From the Himalayas lớn Fifth Avenue

Robert E. Kane , Dec 1, 2004 Read Article
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Peridot

Found in lava, meteorites, và deep in the earth’s mantle, yellow-green peridot is the extreme gem.


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Fancy màu sắc Diamond

Dazzling brilliance. Captivating color. These are the planet’s most valued gems.


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Emerald

Emerald is the bluish green khổng lồ green variety of beryl, a mineral species that includes aquamarine.


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