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HK$1

九眼石頁岩天珠原石

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Sha Tin (沙田)
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九眼石頁岩(天珠)的成因初步可判斷為:遠古的瑪瑙、水晶和岩石散落在海洋底部,在那些淺水區域,適合某些低等藻類生長生物的環境中,藻類依附在瑪瑙、水晶、岩石表面不斷吸附質矽和鐵質,中間歷經數億年,由於不同年代海水中矽和鐵的含量不同,緩慢形成層層環紋。而後,這些寄生了藻類的石頭被沉物積物掩埋,生物死亡,經成岩作用后變為岩石。數億年後,海洋又抬升變為戈壁,這些在大地表層的九眼石頁岩得以被我們發現。
5 days ago In Vintage Collectibles
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Listed by andylo319

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Reviews for andylo319

kcornershop

2020 Aug

good seller, highly recommended to buyer