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4

ALPHABET AGATE FROM JAVA 3.55 CTS [MX9488]

SKU
寸法(mm)
x x mm
重さ (CT)

MINERAL GEM WORLD

ALPHABET AGATE

This is  a natural untreated agate found it java Indonseia.The cutter looks for lines  in the agate rough that merge so he can cut out letters.

Weight 3.55 cts app

Size 11 x 8 x 4 mm app

The heat and fluids which feed hot springs are driven by subsurface volcanic activity. These types of systems are long lived and last from tens of thousands to upwards of millions of years. Recurrent magmatic pulses take place at depth, old conduits reopen and old hot springs regenerate at surface. Chemistry of upwelling fluids may change as they mix with ground water. The water table may change with the climate. Fluids may precipitate their dissolved iron, manganese or other materials along with silica. When an old hot spring gains new life, old cracks, veins and fissures below become conduits for new fluids. These fluids may deposit iron and silica and later seal the old cracks as the system cools down and dies again. These late crack fillings stained by the residual iron or other elements contrast with the older parent agate exhibiting a criss-cross pattern (pull-apart).

Hot spring deposits and their feeder systems can be later exposed at surface by uplift and erosion. The pebble size agates we find in modern day stream beds with red (iron) stained silica cemented (sealed) desiccation cracks are actually the fossil remains of ancient hot spring systems.

The different color agate which fills the healed cracks are just evidence of different mineral saturation in the late stage fluids pulsing the mature hot spring system.

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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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  • js20031
    js20031
    ポジティブ

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

  • js20031
    js20031
    ポジティブ

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

  • wesam
    wesam
    ポジティブ

    Very nice stone

5.00%
クーポンコード SEDADEALS
まで有効
7th Nov 2024

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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 : 234661
始まります : 23rd October 2024 11:00 pm PDT
* すべての価格は:通貨で表示されます