Opals
Gemstones
Jewelry
Coins
No Reserve Gemstones
No Reserve Opals
No Reserve Jewelry
No Reserve Coins
View All Photos (9)
You have not bid on this auction.
8.20 ^ Carats Oval Cut Natural Olivine Green Natural Peridot Gemstone
- SKU
- Dimensions (mm)
- 18.000 x 9.000 x 7.000mm
- Weight (cts)
- 8.200
- Shape
- Oval
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
Peridot (/ˈpɛrɪdɒt/ or /ˈpɛrɪdoʊ/) is gem-quality olivine, which is a silicate mineral with the formula of (Mg, Fe)2SiO4. As peridot is the magnesium-rich variety of olivine (forsterite), the formula approaches Mg2SiO4.
Etymology[edit]
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]
Geologically[edit]
Olivine, of which peridot is a type, is a common mineral in mafic and ultramafic rocks, and it is often found in lavas and in peridotitexenoliths of the mantle, which lavas carry to the surface; but 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 in general is a very abundant mineral, but gem quality peridot is rather rare. This is due to the mineral’s chemical instability on the 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.
Feel Free Make an offer on our items
Paypal Accepted
Thanks
- SKU
- Dimensions (mm)
- 18.000 x 9.000 x 7.000 mm
- Weight (cts)
- 8.200
- Shape
- Oval
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
Peridot (/ˈpɛrɪdɒt/ or /ˈpɛrɪdoʊ/) is gem-quality olivine, which is a silicate mineral with the formula of (Mg, Fe)2SiO4. As peridot is the magnesium-rich variety of olivine (forsterite), the formula approaches Mg2SiO4.
Etymology[edit]
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]
Geologically[edit]
Olivine, of which peridot is a type, is a common mineral in mafic and ultramafic rocks, and it is often found in lavas and in peridotitexenoliths of the mantle, which lavas carry to the surface; but 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 in general is a very abundant mineral, but gem quality peridot is rather rare. This is due to the mineral’s chemical instability on the 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.
Feel Free Make an offer on our items
Paypal Accepted
Thanks
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $18.00 / 15 days | $18.00 / 23 days |
|
Thailand
Standard Shipping - Tracked is discounted to $22.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $22.00 on orders with 2 or more items
|
||
| DHL | $28.00 / 8 days | $28.00 / 8 days |
|
Thailand
DHL is discounted to $38.00 on orders with 2 or more items
Rest of the world
DHL is discounted to $38.00 on orders with 2 or more items
|
||
-
PositiveBeautiful shade of green. An excellent purchase.
-
Positive
-
Positive
Why are users outbidding themselves?
When a bid is placed, this is the maximum amount a user is willing to bid for the product. Our system will then automatically bid on that users behalf, incrementally increasing the bid to maintain their position as the highest bidder, up to the specified maximum.
When there is an icon indicating 'Auto Bid,' it means our system is actively placing bids for the user based on their maximum bid. This may appear as if users are outbidding themselves, but it's simply a result of the system updating the bid to reflect the users maximum limit.
