In the Eifel district Sodalite is definitely listed as late as 1939 ! Fresh Sodalites are colorless and clear or lightly troubled. White crystals are weathered (verweerd, verwitterd). At the Wannenköpfe you can find Sodalite crystals both in lavaslags (together with Sanidine, Apatite, Amphibole and Pyroxene) and in several kinds of xenoliths, together with Sanidine, Topaz, Biotite, Pseudobrookite, Rutile, Cristobalite, Nepheline, Leucite, Nosean, Mullite, Corundum............and sometimes ... Muscovite. Mostly the crystals are white ... rounded, colorless sharp edged crystals are very rare. Often the crystals have holes and nicks (inkepingen, einschnitten). Sometimes other crystals, like Rutile and Pseudobrookite, are covered with one or more Sodalite crystals.
Sodalite ... or ... Nosean ....could be tricky !! Sometimes impossible to determine on sight.
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