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$46.00 USD
價格

MADAGASCAN RUBY ROUGH - GLASSED 20CTS [PS110 ]

5578
22

存貨單位
尺寸(毫米)
x x mm
重量 (cts)
類型
Rough
顏色

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SPECIALIZING IN PINK SAPPHIRES FROM MADAGASCA

                                                                                                             

SEDAGEMS (AUSTRALIA) HS BEEN APPOINTED AS AN AGENT FOR A MADAGASCAN MINING COMPANY                                                                                    

 

 MADAGASCAN RUBY [ENHANCED]

This material was mined in madagscar and treated as below.The specimen is now ready for facating , cabbing or carving. This rough has some size to it so it will be  a pleasant cutting experience.

 WEIGHT 20CTS

SIZE 12X11.5 X11.5 MM

 

 

LEAD GLASS TREATMENT 

Filling the fractures inside the ruby with lead glass dramatically improves the transparency of the stone, making previously unsuitable rubies fit for applications in jewelry. The process is done in four steps:

  1. The rough stones are pre-polished to eradicate all surface impurities that may affect the process
  2. The rough is cleaned with hydrogen fluoride
  3. The first heating process during which no fillers are added. The heating process eradicates impurities inside the fractures. Although this can be done at temperatures up to 1400°C (2500°F) it most likely occurs at a temperature of around 900°C (1600°F) since the rutile silk is still intact
  4. The second heating process in an electrical oven with different chemical additives. Different solutions and mixes have shown to be successful, however mostly lead-containing glass-powder is used at present. The ruby is dipped into oils, then covered with powder, embedded on a tile and placed in the oven where it is heated at around 900°C (1600°F) for one hour in an oxidizing atmosphere. The orange colored powder transforms upon heating into a transparent to yellow-colored paste, which fills all fractures. After cooling the color of the paste is fully transparent, that dramatically improves the overall transparency of the ruby.

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sedagems
sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
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  • rustynut
    rustynut
    積極的

    Good stone great service

  • martin11
    martin11
    積極的

    Great thank very much, lovely pearls.

  • philsgems
    philsgems
    積極的

    Nice piece of rough. thankyou

  • philsgems
    philsgems
    積極的

    Nice stone. Thankyou

  • philsgems
    philsgems
    積極的

    Have received the rough. Nice colour. Thankyou

5%
優惠券代碼 SEDADEALS
有效期至
2nd Jan 2025

審計

該產品已由Gemstone Sheriff審核,他們發現以下內容:
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Comments

The Verified Seller has provided accurate and complete information for this item including weight, dimensions, and treatment.

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送貨細節

船運:
$16.00 21透過Registered Shipping計算天數
發貨自:
Australia

付款方式

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該賣家在Australia交易中加入了10.00%稅。

概述

列表類型 : Standard
產品編號 : 50109
開始 : 19th December 2024 03:00 am PST
* 所有價格均以:貨幣為單位