16.10.05: Spectrolite

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    From LibreTexts, under CC BY-NC-SA 2.5, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    Spectrolite
    Chemical composition Plagioclase feldspar
    Crystal system Triclinic
    Habit Aggregates
    Hardness 5-5.5
    Optic nature Biaxial +
    Refractive index 1.559-1.570
    Birefringence 0.008-0.011
    Dispersion Low
    Specific gravity 2.70
    Lustre Vitreous

    This page titled 16.10.05: Spectrolite was last modified on Fri, 06 May 2022 23:29:26 GMT and is shared under a CC BY-NC-SA 2.5 license and was authored, remixed, and/or curated by gemology via source content that was edited to the style and standards of the LibreTexts platform.