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30.1CT BOLIVIAN AMETRINE ROUGH (Anahi Mine)

139
0

SKU
Afmetingen (mm)
22.000 x 18.000 x 10.000mm
Gewicht (cts)
30.100
Treatment
No Treatment
Type
Rough
Clarity
VVS
Kleuren

Natural Ametrine

  • Grading: VVS

  • Design: Rough

  • Color: Purple, Yellow, Multicolored

  • Origin: Bolivia

  • Treatment: None at all

  • Hardness: 7

  • Refractive Index: 1.54-1.55


Ametrine is a variety of bi-color quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. This material is known by other less-frequently used names including: "amethyst-citrine," "trystine," "bicolor amethyst," "bi-color quartz," and "bolivianite." The bolivianite name is a response to the material being designated as the national gemstone of Bolivia. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Natural Ametrine is a rare gemstone with a finite supply that is produced in commercial quantities at only one mine in the world. The color of the zones visible within ametrine is due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.

*CARE (Ametrine)*

Ultrasonic: Usually safe
Steamer: Risky
Heat: Fair; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, ammonium fluoride can damage.
Best; Warm, soapy water and then gently clean with a soft brush. Dry with a soft cloth or air dry.

*CLARITY CHART*

IF – Internally flawless; free of inclusions
VVS – Very, very slight inclusions; microscopic inclusions barely
seen under a loupe with 10x magnification
VS – Very Slight inclusions; visible inclusions that can be seen under magnification and sometimes also with the unaided eye.
SI – Small inclusions; inclusions that are obvious under magnification and to the unaided eye.
I – Heavy or large inclusions obvious to the naked eye



"Light reflects off of Jewels,
But, "It" comes from above."

Verzend provider Verzending naar United States of America Verzending naar de rest van de wereld
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dougpamgems
dougpamgems
Welcome to DougPamGems. As a professional cutter specializing in opals (Topshelfopals), I have now ventured into the world of "other" gemstones. Precision faceting is my new-found love. As with opals, my goal is to reveal as much whimsical wonder and beauty as a piece of rough can produce. It is my goal to allow these heavenly treasures to lead and guide me, to shape and polish these colorful rustic stones into pure eye candy, to allow them to come into fruition as objects of beauty to pleasure and inspire others like myself. As an award-winning faceter and member of the USFG, You can rest assured that your gemstone has been cut and polished with love, excitement, anticipation and professional skill. Sincerely, Doug
Crestview , United States of America
Geverifieerd
98 feedback

  • kelvin30
    kelvin30
    Positief

    Thanks again Doug!!

  • iona
    iona
    Positief

    A Man who gives us wonderful stones! We thank you!

  • gakarax
    gakarax
    Positief

    Very beautiful gem!

  • rgt4
    rgt4
    Positief

    Paid and shipped - no feedback left after 100 days

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Overzicht

Vermeldingstype : Standard
Product-ID : 2585202
Begint : 11th December 2024 11:42 am PST
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