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A dead eastern redcedar (Juniperus virginiana) was recently cut and the wood saved for later woodworking. From the chainsawn face, a rime of acicular radii appeared only on the colored heartwood over the course of a month or so. The minute crystals are tasteless and have a rough melting point of 72-75°C. What could be the identity of this substance?enter image description here

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    $\begingroup$ An uneducated guess would be a certain oxalate (see also en.wikipedia.org/wiki/Druse_(botany)). $\endgroup$
    – andselisk
    Commented Oct 11 at 15:22
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    $\begingroup$ BTW, tasting oxalates might not be a good idea. (Though rhubarb is eaten.) $\endgroup$ Commented Oct 11 at 15:48
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    $\begingroup$ Biology SE might be a better home for this $\endgroup$
    – Andrew
    Commented Oct 11 at 16:35
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    $\begingroup$ @andselisk I don't believe any oxalate would have a melting point that low. $\endgroup$ Commented Oct 11 at 18:08
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    $\begingroup$ Maybe this one? en.wikipedia.org/wiki/Cedrene $\endgroup$
    – Paul Kolk
    Commented Oct 11 at 19:17

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