Scholarlink

<p>Vivid-colored ammonite fossils that are mined in Alberta, Canada, are known as gemstones called “Ammolite.” The specific colors having narrow reflectance spectra are ascribed to an interference phenomenon on the preserved nacre of fossils. However, the essence of the vivid tones that are different from the structural coloration of other kinds of shells has not been revealed. In this work, we clarified that specific reflection by interlaminar nanogaps (~ 4&#xa0;nm) of aragonite plates with the homogeneous lamination period in the fossilized nacreous layers is essential for the emergence of vivid structural colors depending on the thickness of the layer.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Brilliant structural colors originating from reflection by nanogaps of nacreous layers in fossilized ammonite shells

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年10月30日

查看全文
  • Naoki Hizukuri,
  • Yuri Oshima,
  • Yuta Yagi,
  • Hayato Sasazawa,
  • Yuya Oaki,
  • Hiroyuki Tsuda,
  • Hiroaki Imai

摘要

Vivid-colored ammonite fossils that are mined in Alberta, Canada, are known as gemstones called “Ammolite.” The specific colors having narrow reflectance spectra are ascribed to an interference phenomenon on the preserved nacre of fossils. However, the essence of the vivid tones that are different from the structural coloration of other kinds of shells has not been revealed. In this work, we clarified that specific reflection by interlaminar nanogaps (~ 4 nm) of aragonite plates with the homogeneous lamination period in the fossilized nacreous layers is essential for the emergence of vivid structural colors depending on the thickness of the layer.