相关实验视频
Updated: Jul 12, 2026
08:14
Atom Probe Tomography Analysis of Exsolved Mineral Phases
Published on: October 25, 2019
概括
在墨西哥发现的一种新型旅游宝石矿物,表现出独特的物理特性和晶体结构. 化学分析表明,它是一种铁性旅游金,与已知的埃尔贝特-斯科尔和斯科尔-德拉维特系列不同.
科学领域:
- 矿物学是什么?矿物学是什么?
- 晶体学 晶体学是指结晶学.
- 地质化学 地质化学
背景情况:
- 石组矿物质是复杂的酸盐,具有多样化的化学成分和晶体结构.
- 现有的旅游宝石的分类包括Elbaite-Schorl和Schorl-Dravite等系列.
- 不寻常的矿物事件可以提供对地质过程的洞察力,并扩大矿物学知识.
研究的目的:
- 描述一个来自墨西哥圣路易斯波托西州Mexquitic的新旅游宝石标本.
- 为了确定这种不寻常的游玛林的结晶学和化学特性.
- 为了确定矿物质的分类在马林组内.
主要方法:
- 使用光度仪进行晶体测量以确定晶体形状和尺寸.
- 物理性能测量,包括密度和折射率.
- 化学分析根据细胞体积和密度重新计算.
主要成果:
- 在石中发现了高达10毫米的深棕色镜晶体.
- 记录了明确的晶体面 ({1120}, {3030}, {1011}, {0221}) 和0.4521的c/a比率.
- 旅游宝石表现出高密度,高折射率和极端双折的不同寻常的组合.
- 化学分析支持一种铁性游马林组成,不属于已建立的埃尔贝特-斯科尔和斯科尔-德拉维特系列.
结论:
- 描述的旅游宝石代表了一种新的矿物种或一种重要的新品种.
- 它的独特特性挑战了当前的旅游宝石分类方案.
- 进一步的研究是有必要的,以充分理解它的晶体化学关系和地质意义.
相关概念视频
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03:02Colors and Magnetism
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When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
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