GUILD certified Rare Chondrodite 7.17 ct Humite Group Collector's Gem

2017

SKU
寸法(mm): 13.250 x 10.800 x 7.520mm
重さ (CT): 7.170
Certified Gemstones: はい
Treatment: No Treatment
Clarity: VS
タイプ: Faceted
Shape: Oval, Fancy
色

We providing combine shipping for all of my customer

Gemstone : Natural Chondrodite
Shape : Oval
Color : vivid yellow
Origin : Madagascar
Treatment: Not Heated. Not Treated. Not Enhanced.

Chondrodite is a nesosilicate mineral with formula (Mg,Fe)
5(SiO4)2(F,OH,O)2. Although it is a fairly rare mineral, it is the most frequently encountered member of the humite group of minerals. It is formed in hydrothermal deposits from locally metamorphosed dolomite. It is also found associated with skarn and serpentinite. It was discovered in 1817 at Pargas in Finland, and named from the Greek for "granule", which is a common habit for this mineral.

Mg5(SiO4)2F 2 is the end member formula as given by the International Mineralogical Association,[10] molar mass 351.6 g. There is usually some OH in the F sites, however, and Fe and Ti can substitute for Mg, so the formula for the naturally occurring mineral is better written (Mg,Fe,Ti)
5(SiO4)2(F,OH,O)2

SKU
寸法(mm): 13.250 x 10.800 x 7.520 mm
重さ (CT): 7.170
Certified Gemstones: はい
Treatment: No Treatment
Clarity: VS
タイプ: Faceted
Shape: Oval, Fancy
色

We providing combine shipping for all of my customer

Gemstone : Natural Chondrodite
Shape : Oval
Color : vivid yellow
Origin : Madagascar
Treatment: Not Heated. Not Treated. Not Enhanced.

Chondrodite is a nesosilicate mineral with formula (Mg,Fe)
5(SiO4)2(F,OH,O)2. Although it is a fairly rare mineral, it is the most frequently encountered member of the humite group of minerals. It is formed in hydrothermal deposits from locally metamorphosed dolomite. It is also found associated with skarn and serpentinite. It was discovered in 1817 at Pargas in Finland, and named from the Greek for "granule", which is a common habit for this mineral.

Mg5(SiO4)2F 2 is the end member formula as given by the International Mineralogical Association,[10] molar mass 351.6 g. There is usually some OH in the F sites, however, and Fe and Ti can substitute for Mg, so the formula for the naturally occurring mineral is better written (Mg,Fe,Ti)
5(SiO4)2(F,OH,O)2

配送業者	配送先Thailand	その他の国への配送
Standard Shipping - Tracked	$14.00 / 3	$16.00 / 25
：国 Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$20.00に割引されます世界のその他の地域 Standard Shipping - Tracked 、 2以上のアイテムを含む注文で$25.00に割引されます
FedEx	$42.00 / 8	$42.00 / 10
：国 FedEx 、 2以上のアイテムを含む注文で$55.00に割引されます世界のその他の地域 FedEx 、 2以上のアイテムを含む注文で$55.00に割引されます

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We are suppliers of good quality precious and semiprecious gemstones. Our direct access to the mines in different parts of the world provide us the opportunity to provide best quality at competitive prices to our valued customers.

Bangrak 、 Thailand

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jbaker
on 18 Jan, 2025

ポジティブ

Top grades 1.20 Ct Natural teal Sapphire gemstone For Jewelry

jbaker
on 17 Jan, 2025

ポジティブ

BEAUTIFUL stone, VERY WELL packaged, shipped quick. Better than the pictures as much more blue in the stone than expected, all that AND an unexpected free gift. Thank you jemscollection you will be getting my business in the future!!

Certified top quality blue green 7.20 Cts Natural Paraiba Tourmaline

ffgems
on 14 Jan, 2025

ポジティブ

Gemstone is nice, material quality and color are not much different from the video provided. However, the weight difference is a bit too much. 4.50 cts real vs 5.65 cts description. I assume human error in the description. Best regards... FF Gemstone!!!