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16.52.01: Larimar

  • Page ID
    4953
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    Larimar
    Chemical composition NaCa2Si3O8(OH)
    Crystal system Triclinic
    Habit Aggregate
    Hardness 5
    Optic nature Biaxial +
    Refractive index 1.59 - 1.63
    Birefringence 0.028-0.038
    Dispersion Very weak
    Specific gravity 2.62 - 2.87
    Lustre Silky
    Fluorescence Yellow or orange (SW-UV)

    A blue pectolite found in the Dominican Republic. See pectolite

    Acknowledgments and External Links

    Gems & Gemology, Winter 1989 Issue Larimar
    Blue Pectolite from the Caribbean


    16.52.01: Larimar is shared under a CC BY-NC-SA license and was authored, remixed, and/or curated by LibreTexts.

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