(1978). New mineral, nickel porphyrin, C31 H32 N4 Ni, from Utah. Triclinic, a 8.44, b 11.12, c 7.28A,...degrees 34', Z=l, G calcd. 1.45. X-ray data. ACANTHITE. Shcherbina, (Geokhimiia, 1444-1451 (1978)) Chem...Geochemistry and formation at low temperatures. ACANTHITE. Smith, Mineral. Pa. 18-19 (1978). Occurrence...141-144 (19/9). Microprobe analyses from Burultas deposit, Balkhash, Co 1.0%. ALAbANUlTE. Weinke et al.,...Mineral., Abh. 135, 221-269 (1979). Stability in system Cu-Ag-S at 350-500 degrees C. ALGODONITE. Sinyakov, |