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Formula: Ca7(SiO4)2(PO4)2
Nesosilicate (insular SiO4 groups)
Streak: White
Colour: Yellowish white
Common impurities: Al,Fe,Cr,Mn,Mg,Na,K,P,S
Environments
Sedimentary environments
Metamorphic environments
Localities
At the type locality, the Hatrurim Basin, Tamar Regional Council, Southern District, Israel, nagelschmidtite
occurs as anhedral grains up to 150 microns, in a complex assemblage of high-temperature
contact metamorphosed sedimentary rocks. Associated minerals
include gehlenite, rankinite,
perovskite, titanium-bearing
andradite and magnetite
(AM 63: 424-427, HOM).
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