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3532
3

70.00 CTS 'STAR BURST' RUTILATED QUARTZ ROUGH [FLA188]

SKU
寸法(mm)
x x mm
重さ (CT)
Certified Gemstones
いいえ
タイプ
Rough

QUALITY ROUGH

RUTILATED QUARTZ 'STAR BURST'

This is a natural stunning  rough specimen displaying gold needles.This is a interesting stone in that the needles radiate from one spot so its called a star burst-usually from a mica centre-great collectors stone.You have to process kilos of this material just to find the star.

Mined in Brazil

Weight 70.00 cts app

Size 38 x 21 x 20 mm app


We have taken the picture with the stone wet.We have also used a yellow light to try and show the "star burst'



 

 

Quartz is the most common mineral on Earth. It is found in nearly every geological environment and is a component of almost every rock type.  It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks. It is also the most varied in terms of variety and color.  Quartz is a 7 on the Mohs scale of hardness.

Rutilated quartz is found in Australia, Brazil, Kazakhstan, Madagascar, Norway, Pakistan and the United States.

Rutile is a major ore of titanium, which is a metal used for high tech alloys. It often forms needle-like crystal inclusions inside quartz.  This form of quartz is known as rutilated quartz and it looks like small bars of imbedded needles.  Rutile is a 6 on the Mohs scale.

Because of the difference in hardness between the two materials and because of the way rutile forms inside, this can be a difficult stone to attain a smooth surface without pits.

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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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  • gemarab
    gemarab
    ポジティブ

    Great and clear sapphire, beautiful cut ! Great packaging

  • marcopaulo
    marcopaulo
    ネガティブ

    Not as pictured and underweight by 1.52ct.

  • marcopaulo
    marcopaulo
    ポジティブ

    As pictured but unweight by .14 ct, will accept.

  • js20031
    js20031
    ポジティブ

    AAAA+++ Very Happy! Just like the pic.

監査

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発送詳細

配送:
$16.00 Registered Shipping 経由の日数をカウント
発送元:
Australia

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この出品者は、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 : 333268
始まります : 9th November 2024 05:05 pm PST
* すべての価格は:通貨で表示されます