8.70 CTS MEDUSA QUARTZ-BRAZIL [MGW 4916]
- UGS
- Dimensions (mm)
- 25.000 x 12.000 x 3.000mm
- Poids (cts)
- 8.700
- Couleurs
-
MEDUSA QUARTZ
Medusa Quartz is also known as and sometimes sold as Paraiba quartz because the small deposit was found in the Paraiba state of Brazil.
This new type of included quartz gemstone was discovered in August 2004 in Brazil.It is very rare and in very limited supply.
GIA has an article in Gems & Gemology, called “Medusa Quartz” with gilalite inclusions in the Fall 2005, Volume 41, issue 3.
Under magnification, some resemble the shape of a floating jellyfish named medusas rondeau. Thus the name Medusa quartz. This is 100% natural from the earth and indentification of the inclusions were performed by the National Museum of Natural History in Paris.
Natural
Well polished
Mined in Brazil
Quartz is a macrocrystalline variety of the mineral Quartz (SiO2). Quartz is the most abundant single mineral on earth. It makes up about 12% of the earth’s crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks.
Quartz varieties are commonly separated into two groups based on the size of the individual grains or crystals; macrocrystalline quartz in which individual crystals are distinguishable with the naked eye, and cryptocrystalline quartz in which the individual crystals are too small to be easily distinguishable under the light microscope.
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- UGS
- Dimensions (mm)
- 25.000 x 12.000 x 3.000 mm
- Poids (cts)
- 8.700
- Couleurs
-
MEDUSA QUARTZ
Medusa Quartz is also known as and sometimes sold as Paraiba quartz because the small deposit was found in the Paraiba state of Brazil.
This new type of included quartz gemstone was discovered in August 2004 in Brazil.It is very rare and in very limited supply.
GIA has an article in Gems & Gemology, called “Medusa Quartz” with gilalite inclusions in the Fall 2005, Volume 41, issue 3.
Under magnification, some resemble the shape of a floating jellyfish named medusas rondeau. Thus the name Medusa quartz. This is 100% natural from the earth and indentification of the inclusions were performed by the National Museum of Natural History in Paris.
Natural
Well polished
Mined in Brazil
Quartz is a macrocrystalline variety of the mineral Quartz (SiO2). Quartz is the most abundant single mineral on earth. It makes up about 12% of the earth’s crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks.
Quartz varieties are commonly separated into two groups based on the size of the individual grains or crystals; macrocrystalline quartz in which individual crystals are distinguishable with the naked eye, and cryptocrystalline quartz in which the individual crystals are too small to be easily distinguishable under the light microscope.
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Fournisseur d'expédition | Expédition vers Australia | Expédition dans le reste du monde |
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FedEx | $12.00 / 3 | $39.00 / 10 |
Australia
FedEx bénéficie d'une remise de $12.00 sur les commandes contenant 2 ou plus d'articles
Reste du monde
FedEx bénéficie d'une remise de $39.00 sur les commandes contenant 2 ou plus d'articles
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||
Registered Shipping | $9.00 / 7 | $16.00 / 21 |
Australia
Registered Shipping bénéficie d'une remise de $9.00 sur les commandes contenant 2 ou plus d'articles
Reste du monde
Registered Shipping bénéficie d'une remise de $16.00 sur les commandes contenant 2 ou plus d'articles
|
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Positif
Great thank very much, lovely pearls.
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Positif
Nice piece of rough. thankyou
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Positif
Nice stone. Thankyou
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Positif
Have received the rough. Nice colour. Thankyou
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Positif
Beautiful ametrine. Very fast delivery. Professional seller