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$110.00 USD
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27mm 24.65ct Hemimorphite cabochon

8212
9

Artikelnummer
Abmessungen (mm)
27.000 x 21.000 x 5.000mm
Gewicht (cts)
24.650
Treatment
No Treatment
Farben

ShangrilaGems

‘The Best Gems on the Web!’

Gem-A Corporate Member

We think the photos are totally accurate with the color. See the lovely dendrites - proving it is totally natural and untreated. A beautiful gemstone - please see the video. A beautiful unusual gemstone with bi colors - different and original. Please note a 55ct piece of genuine Hemimorphite sold at Auction for $5000 plus hammer fee and sales tax.

We managed to find some of this rare gemstone on our last buying trip and we couldn’t quite believe our luck. Grab it as we wont get it again!

Hemimorphite is a rare gem quality form of zinc silicate. Hemimorphite is very closely associated with Smithsonite, another rare collector’s gem. For many years, hemimorphite and smithsonite were both classed together another gemstone called calamine because of the similarity. In 1803 it was discovered to be two different minerals by mineralogist, James Smithson (of the Smithsonian Institute). Hemimorphite is a zinc silicate, whilst smithsonite is a zinc carbonate; zinc silicate Hemimorphite is considered to be rarer than Smithsonite. . The name ‘hemimorphite’ originates from the Greek words ‘hemi’ and ‘morph’, which respectively translate as ‘half-shape’. The name refers to its unusual hemimorphic crystal form, which means that the axial ends of crystals are asymmetrical. One end of each crystal is rather blunt, dominated by a pedion (a single face), while the other is pointed and pyramidal. Hemimorphite can be identified by its distinct composition and unique crystal structure. Hemimorphite can be composed of over fifty percent zinc. Gemmologically, it has a refractive index of 1.614 to 1.636 and a density or specific gravity of 3.30 to 3.50. Its hardness is 5 on the Mohs scale. Few deposits of Hemimorphite yield gemstone quality materials. Some of the most significant deposits are from Vieille Montagne, Belgium and Aachen, Germany, Mexico, Russia (Siberia), The Congo, Namibia, Madagascar and the United States, including Pennsylvania, Montana, Colorado and New Mexico. Hemimorphite can occur in various tones of blue, green and colorless. Most gemstones are blue to blue-green, and look similar to chrysocolla or turquoise. The most desirable color is sky to Swiss blue, which is reminiscent of Paraiba tourmaline. Hemimorphite often exhibits bands of blue with white streaks, and it may also be found interspersed by a dark matrix. Gem quality hemimorphite typically ranges from transparent to translucent in clarity. There is no known treatment for this gemstone - it is natural and organic.

Chemical Formula: Zn4Si2O7(OH)2•H2O - Hydrous basic zinc silicate Crystal Structure: Orthorhombic; tabular Color Blue green, colorless Hardness 5 on the Mohs scale Refractive Index: 1 614 to 1.636 Density 3 30 to 3.50 Cleavage Perfect Transparency Transparent to opaque Double Refraction +0.022 Luster Vitreous, adamantine

Fluorescence: Weak

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Rest der Welt
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shangrilagems
PLEASE NOTE OUR BUSINESS WILL BE CLOSED FROM 7 DECEMBER 2024 UNTIL LATE JANUARY 2025 for personal reasons. We will start shipping again at the end of January 2025. WARNING: IF A DIAMOND IT LOOKS TOO GOOD TO BE TRUE IT IS BECAUSE IT IS! If it is too cheap it can’t be real. *OUR DIAMONDS are genuine natural diamonds and WHEN THEY HAVE BEEN TREATED WE WILL INFORM YOU. *MANY SELLERS ARE SELLING COATED diamonds - these have been coated with chemicals to improve the quality of poor rough and make them look shiny; we can easily spot them. *SOME ARE GLASS FILLED DIAMONDS -with very little diamond in them. They will all pass tests with amateur diamond testing equipment because they contain some diamond. Please be warned. They are charging far less that the real thing would cost to purchase on the wholesale market. ShangrilaGems mission is to delight our customers with the quality of our service and the beauty of our treasures. ShangrilaGems is made up of us two directors: husband and wife Sarajane and Rakesh, both are highly educated with MSc's. As an Anglo-Indian company, we trade both from London and India; specifically the two cities of Dharamshala in the Himalayas and Jaipur in Rajasthan. ShangrilaGems are corporate members of the British Gemmological Association and look to uphold their high standards of gem research and presentation. We trained in gemmology in both the UK and India.ShangrilaGems are Europes' best supplier of high quality Gemstones, cabochon and gemstone beads. We are famous for the quality, originality and quirkiness of our gemstones. Our customers include gem re-sellers in the London gem district (Hatton Garden) High end designers and both British and International gem and bead wholesalers. WARNING: IF IT LOOKS TOO GOOD TO BE TRUE IT IS BECAUSE IT IS! *OUR DIAMONDS ARE GENUINE NATURAL DIAMONDS AND WHEN THEY HAVE BEEN TREATED WE WILL INFORM YOU. *MANY SELLERS ARE SELLING COATED DIAMONDS - THESE HAVE BEEN COATED WITH CHEMICALS TO IMPROVE THE QUALITY OF POOR ROUGH AND MAKE THEM LOOK SHINY; WE CAN EASILY SPOT THEM. *SOME ARE GLASS FILLED DIAMONDS -WITH VERY LITTLE DIAMOND IN THEM. THEY WILL ALL PASS TESTS WITH AMATEUR DIAMOND TESTING EQUIPMENT BECAUSE THEY CONTAIN SOME DIAMOND. PLEASE BE WARNED. THEY ARE CHARGING FAR LESS THAT THE REAL THING WOULD COST TO PURCHASE ON THE WHOLESALE MARKET. ShangrilaGems Responsible Sourcing All our gems are Responsibly sourced. We know the country they come from and the specific mine. Our diamonds are all sourced from Botswana from the Jwaneng mine. The largest diamond mine in the world. Botswana upholds extremely high mining standards; No diamonds are conflict diamonds or blood diamonds. We cut these diamond in our own family run factory in Surat, India and there is no child labor. The staff are paid well and the conditions are good and the staff are well trained and looked after and are content and happy. We are cautious to use the word ‘ethical’ for gems or diamonds as in our experience ‘ethical’ means different things to different people. ETHICAL IS A SEVERELY ABUSED TERM.
Bickley , United Kingdom
Verifiziert
5046 Feedback

  • elliemi1
    elliemi1
    Positiv

    The stone arrived today and it is mesmerizing.. Picture was representative of the item received. I will definitely purchase from Shangri-La gems again.

  • rtavenner
    rtavenner
    Positiv

    Paid and shipped - no feedback left after 100 days

  • sally1985
    sally1985
    Positiv

    Paid and shipped - no feedback left after 100 days

  • bejustice
    bejustice
    Positiv

    Nice beads for a silver sinahi chest piece I am working on.

  • bejustice
    bejustice
    Positiv

    Nice Labradorite beads. Good size and color.

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Versanddetails

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Schiffe von:
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Überblick

Auflistungstyp : Standard
Produkt ID : 1355693
Beginnt : 19th December 2024 03:19 am PST
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