Showing 1–20 of 148 results

Serpentine

Chemical Composition : D3[Si2O5](OH)4 +/- n(H2O); (Serpentine Group)  Mg3(Si2O5)(OH)4; (Antigorite, Lizardite & Chrysotile) Magnesium Silicate Hydroxide (Antigorite, Lizardite & Chysotile)

Hardness : 2.5

Specific Gravity (Density) : 2.55 (g/cm3)

Refractive Index : 1.538 – 1.568 Uniaxial (-) to slightly Biaxial (-)

Serpentine is not the name of a distinct mineral species but is the name of a group of minerals: the Serpentine Group. The Serpentine Group includes Antigorite, Chrysotile and Lizardite. These three minerals are polymorphous, meaning they have essentially the same chemistry but different structures. Antigorite is a fairly common member of the group, but Lizardite is the most abundant Serpentine. The Serpentine Group is a subgroup of the Kaolinite-Serpentine Group. The Serpentine Group describes a group of common rock-forming magnesium phyllosilicate minerals that may contain minor amounts of other elements including chromium, cobalt, iron, manganese or nickel. As the members of the Serpentine Group are not always easy to differentiate from one another, they may just be referred to as Serpentine.

Serpentine was named in 1564 by Georgius Agrigola (1494-1555) from the Latin word serpens meaning snake in allusion to the mottled green appearance of the mineral suggesting the resemblance to some snakes. Georgius Agrigola was a German Catholic scholar and scientist known as “”the father of mineralogy””. His birth name was Georg Pawer (Bauer in modern German). Agricola is the Latinized version of his name, by which he was known his entire adult life. Agricola and Bauer mean “”farmer”” in their respective languages. He is best known for his book De Re Metallica (Latin for On the Nature of Metals (Minerals)). It is a book cataloguing the state of the art of mining, refining, and smelting metals at the time. It was published in 1556, a year after his death, due to a delay in preparing woodcuts for the text. The book was the authoritative text on mining for 180 years after its publication. It was also an important chemistry text for the period and is significant in the history of chemistry.

Distribution: Probably the most common serpentine mineral. A few prominent localities for well-studied material include: at Kennack Cove, The Lizard, Cornwall, England. On Unst, Shetland Islands, Scotland. From near Val Sissone, Lombardy, and Val Trebbia, Piacenza, Italy. In Japan, from Maruo Odori and Kodo, Yamaguchi Prefecture, and at Hamao, Fukuoka Prefecture. At Woodsreef, New South Wales, Australia. From the Jeffrey mine, Asbestos, Quebec, and the Cassiar mine, British Columbia, Canada. In the USA, in the Stillwater complex, Montana.

Serpentine

Serpentine 3.55ct 11.88×8.82×5.22mm Natural Gemstone Afghanistan

38.88$
SKU: AK10220
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

3 – 3.99 ct, All Weight

Gem Type

All Cut Gems, Faceted

Serpentine 12.08ct 14.42×7.78mm Natural Gemstone Afghanistan

126.01$
SKU: AK15100
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Round

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Faceted

Serpentine 6.36ct 15.05×11.00×4.97mm Natural Gemstone Afghanistan

66.34$
SKU: AK15099
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

6 – 6.99 ct, All Weight

Gem Type

All Cut Gems, Faceted

Serpentine 7.89ct 12.60×9.60×8.22mm Natural Gemstone Afghanistan

82.31$
SKU: AK15019
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

7 – 7.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 7.50ct 13.30×10.02×7.Natural Gemstone Afghanistan

78.24$
SKU: AK15018
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

7 – 7.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 7.61ct 14.94×9.65×6.84mm Natural Gemstone Afghanistan

79.39$
SKU: AK15020
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

7 – 7.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 7.31ct 14.81×11.97×5.47mm Natural Gemstone Afghanistan

76.27$
SKU: AK15017
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

7 – 7.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 7.81ct 15.42×11.44×5.75mm Natural Gemstone Afghanistan

81.48$
SKU: AK15016
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

7 – 7.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 10.52ct 15.11×12.65×7.12mm Natural Gemstone Afghanistan

109.74$
SKU: AK15015
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 11.54ct 15.52×12.54×7.55mm Natural Gemstone Afghanistan

120.38$
SKU: AK15014
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 12.60ct 18.85×12.14×7.33mm Natural Gemstone Afghanistan

131.43$
SKU: AK15013
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 12.23ct 15.67×12.66×8.24mm Natural Gemstone Afghanistan

127.59$
SKU: AK15012
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 11.97ct 16.89xx13.79×6.74mm Natural Gemstone Afghanistan

124.87$
SKU: AK15011
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 8.06ct 13.11×6.00mm Natural Gemstone Afghanistan

84.08$
SKU: AK15010
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Round

Weight

8 – 8.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 6.79ct 14.02×10.65×5.84mm Natural Gemstone Afghanistan

70.84$
SKU: AK15009
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

6 – 6.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 5.49ct 14.15×11.66×4.41mm Natural Gemstone Afghanistan

57.28$
SKU: AK15008
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

5 – 5.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 8.53ct 16.31×10.57×6.31mm Natural Gemstone Afghanistan

88.99$
SKU: AK15007
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

8 – 8.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 11.66ct 14.49×1.89×8.57mm Natural Gemstone Afghanistan

121.63$
SKU: AK15006
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 10.20ct 17.70×13.02×5.84mm Natural Gemstone Afghanistan

106.40$
SKU: AK15005
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine 10.39ct 17.59×12.58×6.15mm Natural Gemstone Afghanistan

108.40$
SKU: AK15004
Colours

All Colours, Green

Origin

Afghanistan, All Origins

Shapes

All Shapes, Oval

Weight

10 – 14.99 ct, All Weight

Gem Type

All Cut Gems, Cabochons

Serpentine

Chemical Composition : D3[Si2O5](OH)4 +/- n(H2O); (Serpentine Group)  Mg3(Si2O5)(OH)4; (Antigorite, Lizardite & Chrysotile) Magnesium Silicate Hydroxide (Antigorite, Lizardite & Chysotile)

Hardness : 2.5

Specific Gravity (Density) : 2.55 (g/cm3)

Refractive Index : 1.538 – 1.568 Uniaxial (-) to slightly Biaxial (-)

Serpentine is not the name of a distinct mineral species but is the name of a group of minerals: the Serpentine Group. The Serpentine Group includes Antigorite, Chrysotile and Lizardite. These three minerals are polymorphous, meaning they have essentially the same chemistry but different structures. Antigorite is a fairly common member of the group, but Lizardite is the most abundant Serpentine. The Serpentine Group is a subgroup of the Kaolinite-Serpentine Group. The Serpentine Group describes a group of common rock-forming magnesium phyllosilicate minerals that may contain minor amounts of other elements including chromium, cobalt, iron, manganese or nickel. As the members of the Serpentine Group are not always easy to differentiate from one another, they may just be referred to as Serpentine.

Serpentine was named in 1564 by Georgius Agrigola (1494-1555) from the Latin word serpens meaning snake in allusion to the mottled green appearance of the mineral suggesting the resemblance to some snakes. Georgius Agrigola was a German Catholic scholar and scientist known as “”the father of mineralogy””. His birth name was Georg Pawer (Bauer in modern German). Agricola is the Latinized version of his name, by which he was known his entire adult life. Agricola and Bauer mean “”farmer”” in their respective languages. He is best known for his book De Re Metallica (Latin for On the Nature of Metals (Minerals)). It is a book cataloguing the state of the art of mining, refining, and smelting metals at the time. It was published in 1556, a year after his death, due to a delay in preparing woodcuts for the text. The book was the authoritative text on mining for 180 years after its publication. It was also an important chemistry text for the period and is significant in the history of chemistry.

Distribution: Probably the most common serpentine mineral. A few prominent localities for well-studied material include: at Kennack Cove, The Lizard, Cornwall, England. On Unst, Shetland Islands, Scotland. From near Val Sissone, Lombardy, and Val Trebbia, Piacenza, Italy. In Japan, from Maruo Odori and Kodo, Yamaguchi Prefecture, and at Hamao, Fukuoka Prefecture. At Woodsreef, New South Wales, Australia. From the Jeffrey mine, Asbestos, Quebec, and the Cassiar mine, British Columbia, Canada. In the USA, in the Stillwater complex, Montana.

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