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3.80 Ct Incredible Natural Grandidierite Gemstone SKU A16

存货单位
尺寸(毫米)
12.000 x 9.700 x 4.480mm
重量 (cts)
3.800
颜色

Grandidierite was first discovered in 1902 in Madagascar by Alfred Lacroix, a French mineralogist. Lacroix named the mineral in honor of French explorer and naturalist Alfred Grandidier (1836–1912), the first authority on the natural history of Madagascar.

Since its initial discovery, samples of Grandidierite have been found in only a few locations around the world, including Malawi, Namibia and Sri Lanka. But the few gem quality specimens have come mainly from Madagascar.

Gem-quality Grandidierite is extremely rare, and it often appears on the list of the 10 rarest varieties in the world, along with gems like jeremejevite, painite, benitoite and taafeite.

Gemologically, Grandidierite is a magnesium aluminum borosilicate. It has a hardness of 7 to 7.5 on the Mohs scale, similar to garnet; a density of 2.85 to 3.00, in the approximate range of tourmaline; and a refractive index of 1.590-1.623.

Name: GRANDIDIERITE GEMSTONE

Place of Origin: MADAGASCAR

TREATMENT: NATURAL


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  • lordloku
    lordloku
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  • lordloku
    lordloku
    积极的

    A+++ fast shipping items as described!

  • lordloku
    lordloku
    积极的

    A+++ fast shipping items as described!

  • lordloku
    lordloku
    积极的

    A+++ fast shipping items as described!

审计

该产品已由 Gemstone Sheriff 审核,他们发现以下内容:
  • 描述准确
  • 图片准确

Comments

The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.

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送货细节

船运:
$13.00 :通过 Standard Shipping - Tracked 计算天数
发货自:
Thailand

付款方式

  • paypal
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概述

列表类型 : Standard
产品编号 : 993317
开始 : 8th November 2024 04:12 am PST
* 所有价格均以:货币为单位