Each purchase comes with one gem jar containing approximately 5.5 grams of peridot crystals. The jar measures 35mm tall by 15mm across (1 3/8 by 5/8 inches). I show multiple jars in the photos so you can see that they are very similar in appearance from one jar to the next.
I offer a shipping discount for customers who combine their payments for multiple purchases into one payment!
The discount is regular shipping price for the first item and just 50 cents for each additional item!
To be sure you get your shipping discount just make sure all the items you want to purchase are in your cart.
Auctions you win are added to your cart automatically.
For any "buy it now" items or second chance offers, be sure to click the "add to cart" button, NOT the "buy it now" button.
Once all of your items are in your cart just pay for them from your cart and the combined shipping discount should be applied automatically.
If you are not 100% happy with your purchase just send me a message
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Hi there. I am selling this nice green peridot gift set. It comes complete with 5.5 grams of nice peridot crystals and also a glass bottle topped with a cork. These would be great for starting your own mineral collection, or for a reiki or crystal healer, or just to have some very beautiful decorations in your house. I even have some of these stones in flower pots and they look great around the cactus. They have been washed and prepared for their new owner. If you have any questions, do not hesitate to ask me. Thanks so much for visiting my Ebay store!
Peridot
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For other uses, see Peridot (disambiguation).
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Peridot
Forsterite-Olivine-tmu14a.jpg
General
Category Silicate mineral variety
Formula
(repeating unit) (Mg, Fe)2SiO4
Crystal system Orthorhombic
Identification
Color Yellow, to yellow-green, olive-green, to brownish, sometimes a lime-green, to emerald-ish hue
Cleavage Poor
Fracture Conchoidal
Mohs scale hardness 6.5–7
Luster vitreous (glassy)
Streak None
Specific gravity 3.2–4.3
Refractive index 1.64–1.70
Birefringence +0.036
Peridot (/ˈpɛrɪdɒt/ or /ˈpɛrɪdoʊ/) (sometimes called chrysolite) is gem-quality olivine and a silicate mineral with the formula of (Mg, Fe)2SiO4. As peridot is a magnesium-rich variety of olivine (forsterite), the formula approaches Mg2SiO4.
Contents
1 Etymology
2 Appearance
3 Occurrence
3.1 Geologically
3.2 In meteorites
4 Gemology
5 In popular culture
6 Gallery
7 References
8 External links
Etymology
The origin of the name peridot is uncertain. The Oxford English Dictionary suggests an alteration of Anglo–Norman pedoretés (classical Latin pæderot-), a kind of opal, rather than the Arabic word faridat, meaning "gem".
The Middle English Dictionary's entry on peridot includes several variations: peridod, peritot, pelidod and pilidod — other variants substitute y for the is seen here.[1]
The earliest use in England is in the register of the St Albans Abbey, in Latin, and its translation in 1705 is possibly the first use of peridot in English. It records that on his death in 1245, Bishop John bequeathed various items, including peridot, to the Abbey.[2]
Appearance
Peridot is one of the few gemstones that occur in only one color: an olive-green. The intensity and tint of the green, however, depends on the percentage of iron in the crystal structure, so the color of individual peridot gems can vary from yellow, to olive, to brownish-green. In rare cases, peridot may have a medium-dark toned, pure green with no secondary yellow hue or brown mask.[3]
Occurrence
Geologically
Olivine, of which peridot is a type, is a common mineral in mafic and ultramafic rocks, often found in lava and in peridotite xenoliths of the mantle, which lava carries to the surface; however, gem-quality peridot occurs in only a fraction of these settings. Peridots can also be found in meteorites.
Peridots can be differentiated by size and composition. A peridot formed as a result of volcanic activity tends to contain higher concentrations of lithium, nickel and zinc than those found in meteorites.[4]
Olivine is an abundant mineral, but gem-quality peridot is rather rare due to its chemical instability on Earth's surface. Olivine is usually found as small grains and tends to exist in a heavily weathered state, unsuitable for decorative use. Large crystals of forsterite, the variety most often used to cut peridot gems, are rare; as a result olivine is considered to be precious.
In the ancient world, mining of peridot, called topazios then, on St. John's Island in the Red Sea began about 300 B.C.[5]
The principal source of peridot olivine today is the San Carlos Apache Indian Reservation in Arizona.[6] It is also mined at another location in Arizona, and in Arkansas, Hawaii, Nevada, and New Mexico at Kilbourne Hole, in the US; and in Australia, Brazil, China, Egypt, Kenya, Mexico, Myanmar (Burma), Norway, Pakistan, Saudi Arabia, South Africa, Sri Lanka, and Tanzania.
In meteorites
Pallasite meteorite with olive-green peridot crystals, found in Fukang, China.
Peridot crystals have been collected from some pallasite meteorites.
Gemology
Peridot is sometimes mistaken for emeralds and other green gems. Notable gemologist George Frederick Kunz[7] discussed the confusion between emeralds and peridots in many church treasures, notably the "Three Magi" treasure in the Dom of Cologne, Germany.
The largest cut peridot olivine is a 310 carat (62 g) specimen in the Smithsonian Museum in Washington, D.C.
Peridot olivine is the birthstone for the month of August.[8]