[501] Beilstein, so v.w. Nephrit u. Ophit.
Brockhaus-1911: Beilstein [3] · Beilstein [2] · Beilstein
Lueger-1904: Beilstein
Meyers-1905: Beilstein [3] · Beilstein [2] · Beilstein [1]
Pierer-1857: Beilstein [1]