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13

Rare Andesine Sunstone 4.11 ct Attarctive Color Untreated SKU-3

UGS
Dimensions (mm)
13.480 x 7.100 x 5.350mm
Poids (cts)
4.110
Treatment
No Treatment
Shape
Rectangle
Taper
Faceted
Couleurs

Orange andesine is a variety of the plagioclase feldspar mineral, specifically a type of labradorite, which falls within the andesine range of the solid solution series. It is known for its vibrant orange to red-orange color, which can resemble that of other gemstones like sunstone and is often used in jewelry.

Characteristics and Properties

  1. Color: Orange andesine ranges in color from a pale orange to a rich red-orange. The color is often caused by the presence of copper inclusions, similar to what is found in sunstone.

  2. Composition: Andesine is part of the plagioclase feldspar series and is composed primarily of sodium and calcium aluminum silicates. Its formula is typically represented as (Na,Ca)(Si,Al)4O8.

  3. Hardness: It has a Mohs hardness of around 6 to 6.5, making it relatively durable for use in jewelry, though it should still be treated with care to avoid scratches.

  4. Luster and Transparency: Orange andesine exhibits a vitreous (glassy) luster and can range from transparent to translucent.

  5. Crystal System: It crystallizes in the triclinic system, typically forming in tabular or blocky crystal habits.

Sources and Treatments

  • Natural Sources: Natural deposits of andesine can be found in locations such as Mongolia, Oregon (USA), and South Africa. However, the most noted sources for gem-quality orange andesine have been Mongolia and the Democratic Republic of Congo.

  • Treatments: Some orange andesine on the market has been subject to treatments to enhance its color. Diffusion treatment with copper has been a known method to enhance the red and orange colors of this gemstone. It is essential for buyers to inquire about the origin and treatment status of andesine when purchasing.

Identification and Differentiation

Orange andesine can sometimes be confused with other feldspars, such as sunstone or even certain types of labradorite. Its identification involves examining its optical properties and using tools like a refractometer to measure its refractive index, which typically falls between 1.543 to 1.560. Pleochroism (different colors seen from different angles) is another feature that can help in its identification.

Market and Uses

  • Jewelry: Orange andesine is primarily used in jewelry, including rings, earrings, necklaces, and pendants. Its vibrant color makes it a popular choice for unique and eye-catching pieces.

  • Value: The value of orange andesine varies based on factors like color, clarity, cut, and whether it is treated or natural. Untreated stones with a deep, uniform color and good clarity are generally more valuable.

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gemsmine
Gems Mine: Your One-Stop Shop for High-Quality Gemstones. ...................................... As a gemstone enthusiast, you know how challenging it can be to find high-quality stones at reasonable prices. That's where Gems Mine comes in - we're a well-established gemstone wholesaler operating in Pakistan and Thailand for the past 5 years. Our mission is to provide our customers with the best possible selection of high-quality semi-precious and precious gemstones sourced from around the world. Our Specialty: Sourcing the Best Quality Gemstones At Gems Mine, we take great pride in our ability to source only the highest quality gemstones from around the world. Our focus is on regions such as Africa, Pakistan, Tajikstan, Afghanistan, and Kashmir - areas with a rich history of producing some of the most beautiful gemstones in the world. We believe that our strong connections to these important mining and market areas allow us to offer our customers stones of the highest quality at attractive prices. We work closely with our suppliers to ensure that our customers receive only the best stones available. Our Selection: A Wide Range of Gemstones At Gems Mine, we understand that every customer is unique, with their own tastes and preferences. That's why we offer a wide range of gemstones to choose from, including: Emeralds Sapphires Rubies Topaz Amethysts Citrines Peridots And much more! We believe that our selection of gemstones is one of the best in the industry, and we're constantly updating our inventory to ensure that we have the latest and greatest stones available. Our Service: Exceptional Customer Care At Gems Mine, we believe that exceptional customer care is key to our success. We strive to provide our customers with the best possible shopping experience, from the moment they land on our website to the moment they receive their order. Our team is made up of gemstone experts who are always on hand to answer any questions you may have about our products. We're here to help you find the perfect stone for your needs, whether you're a professional jeweler or a hobbyist. Our Promise: Quality and Value At Gems Mine, we understand that quality and value are of the utmost importance to our customers. That's why we promise to provide you with only the best quality gemstones at the most competitive prices. We believe that our dedication to quality and value sets us apart from our competitors. We stand behind every stone we sell, and we're confident that you'll love your purchase. Why Choose Gems Mine? Wide selection of high-quality gemstones Competitive pricing Exceptional customer care A focus on quality and value At Gems Mine, we believe that we offer the best possible combination of quality, value, and service in the industry. We're committed to providing our customers with the best possible shopping experience, and we're always looking for ways to improve. If you're in the market for high-quality gemstones, look no further than Gems Mine. We're your one-stop shop for all your gemstone needs. Conclusion At Gems Mine, we're passionate about gemstones, and we're committed to providing our customers with only the best quality stones at the most competitive prices. Our selection of gemstones is one of the best in the industry, and our team of experts is always on hand to help you find the perfect stone for your needs. We believe that our dedication to quality, value, and customer care sets us apart from our competitors, and we're proud to be one of the most trusted gemstone wholesalers in Pakistan and Thailand.
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  • gemius
    gemius
    Positif

    nice stone, quick delivery and friendly service, thanks

  • megan014
    megan014
    Positif

    This gem is beautiful more beautiful in person than the photos , shipping was fast , packaged neatly with invoice and hopefully get the opportunity to make another purchase.

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Les détails d'expédition

Expédition:
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Expédié depuis:
Thailand

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Aperçu

Type d'inscription : Premium
Identifiant du produit : 2491764
RRP estimé : $2,500.00
Enchère de départ : $1
Départs : 28th June 2024 04:32 am AEST
Prend fin : 5th July 2024 04:32 am AEST
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