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価格

SUNSTONE ROUGH TANZANIA 26.50 CTS [F2768]

3563
7

SKU
寸法(mm)
20.000 x 17.000 x 13.000mm
重さ (CT)
26.500
タイプ
Rough

QUALITY ROUGH

SUNSTONE ROUGH

 

This is a natural untreated rough specimenfrom Tanzania Africa showing the firey flash it is known for.

It is also known as Labradorite feldspar.

Weight  26.50 cts app

Size 20 x 17 x 13  mm app

Note photo taken with the rough wet.There are natural fractures in the stone[which is common for this type of material] so it will cut smaller stones.Visit SEDA GEMS to see some stones cut from this parcel.

 Sunstone contains inclusions of copper crystals. Sunstone can be found as large as three inches across. The copper leads to varying color within some stones, where turning one stone will result in multiple colors. The more copper within the stone, the darker the complexion

Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibits a brilliant spangled appearance; this has led to its use as a gemstone. It has been found in Southern Norway,tanzania and in some United States localities. It is the official gemstone of Oregon.

GRADING   The first factor in grading is the amount of Schiller[a sub -surface   iridescent shimmer]The more schiller the less the stone reflects and   shimmers as it blocks suns rays.The next grade is for colour as it can   be found in red ,green.yellow,pink and orange.

Sunstone with high amounts of schiller are great for carvings.

The optical effect appears to be due to reflections from enclosures of red haematite, in the form of minute scales, which are hexagonal, rhombic or irregular in shape, and are disposed parallel to the principal cleavage-plane. These enclosures give the stone an appearance something like that of aventurine,  whence sunstone is known also as “aventurine-feldspar.” The optical   effect called shiller and the color in Oregon Sunstone is due to copper.  In the middle part of this crystal, it sparks a lot, and usually has a   dark color in the middle, and the color becomes lighter as it becomes   the outer part.

More Information

配送業者 配送先Australia その他の国への配送
FedEx $12.00 / 3 $39.00 / 10
:国
FedEx 、 2以上のアイテムを含む注文で$12.00に割引されます
世界のその他の地域
FedEx 、 2以上のアイテムを含む注文で$39.00に割引されます
Registered Shipping $9.00 / 7 $16.00 / 21
:国
Registered Shipping 、 2以上のアイテムを含む注文で$9.00に割引されます
世界のその他の地域
Registered Shipping 、 2以上のアイテムを含む注文で$16.00に割引されます

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.
Mermaid Waters 、 Australia
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  • rustynut
    rustynut
    ポジティブ

    Good stone great service

  • martin11
    martin11
    ポジティブ

    Great thank very much, lovely pearls.

  • philsgems
    philsgems
    ポジティブ

    Nice piece of rough. thankyou

  • philsgems
    philsgems
    ポジティブ

    Nice stone. Thankyou

  • philsgems
    philsgems
    ポジティブ

    Have received the rough. Nice colour. Thankyou

5%
クーポンコード SEDADEALS
まで有効
2nd Jan 2025

監査

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発送詳細

配送:
$16.00 21日 ( Registered Shipping経由)
発送元:
Australia

支払いオプション

  • paypal
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この販売者は、 Australiaでの取引に10.00%税金を追加します。

概要

リストタイプ : Standard
製品番号 : 659710
始まります : 24th December 2024 09:51 pm PST
* すべての価格はUSDで表記されています