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$19.99 USD
價格
6190
4

71.05 CTS 'STAR BURST' RUTILATED QUARTZ ROUGH [FLA204]

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

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 71.05 cts app

Size 33 x 23 x 14 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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  • royrock
    royrock
    積極的

    Beautiful agate piece , and as always fast efficient service from Sedagems

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

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概述

列表類型 : Standard
產品編號 : 333304
開始 : 12th November 2024 05:30 pm PST
* 所有價格均以:貨幣為單位