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NT$808

矽化木化石Petrified wood(免運

NT$808

Description

Posted

1 month ago

產地:美國亞利桑那州 Arizona, USA 尺寸:7.3cm x 5.1cm x 3.0cm 重量:201.00 g 這是一種叫做南洋杉型木(Araucarioxylon arizonicum)的植物,是松柏門中已滅絕的一個物種。古代樹木被火山灰掩埋後,原 來碳質的有機成分為火山灰中的矽質置換變成化石。此地標本因火山灰掩埋後有多種離子侵入,所以呈現出漂亮的色彩。

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@mon4021515
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