Color: gelblich grün
Fracture: splittrig
Tenacity: leicht flexibel bevor spröde References: Kampf, A.R., Plášil, J., Cejka, J., Marty, J., Škoda, R. and Lapcák, L. (2016). Alwilkinsite-(Y), IMA 2015-097. CNMNC Newsl., No.29, S.204; Min. Mag., 80, 199–205. (Typ-Publ.)
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