Pyracmonite
Demartin F, Gramaccioli C M, Campostrini I
The Canadian Mineralogist 48 (2010) 307-313
Pyracmonite, (NH4)3Fe(SO4)3, a new ammonium iron sulfate
from La Fossa crater, Vulcano, Aeolian Islands, Italy
Locality: La Fossa crater, Vulcano, Aeolian Islands, Italy
_database_code_amcsd 0006332
CELL PARAMETERS: 15.2171 15.2171 8.9323 90.000 90.000 120.000
SPACE GROUP: R3c
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1791.256
Density (g/cm3): 2.244
MAX. ABS. INTENSITY / VOLUME**2: 21.11185038
RIR: 3.064
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
11.63 100.00 7.6086 1 1 0 6
20.22 7.78 4.3928 3 0 0 3
20.41 24.08 4.3503 2 1 1 6
21.00 6.29 4.2298 0 1 2 3
24.07 4.43 3.6970 2 0 2 3
26.35 43.72 3.3828 1 3 1 6
26.81 44.65 3.3252 1 2 2 6
31.10 4.06 2.8758 4 1 0 6
31.23 9.72 2.8637 3 2 1 6
31.63 18.70 2.8286 3 1 2 6
32.29 8.80 2.7727 1 1 3 6
33.81 5.05 2.6513 0 4 2 3
35.87 5.13 2.5036 2 3 2 6
37.49 1.06 2.3990 2 4 1 6
38.39 2.42 2.3447 2 2 3 6
39.38 4.02 2.2879 5 1 1 6
39.71 2.69 2.2699 5 0 2 3
40.99 1.28 2.2017 1 0 4 3
41.10 4.49 2.1964 6 0 0 3
41.52 1.03 2.1752 4 2 2 6
42.76 1.75 2.1149 0 2 4 3
42.86 3.52 2.1102 5 2 0 6
43.26 5.65 2.0914 1 5 2 6
46.59 1.55 1.9493 3 4 2 6
47.73 1.71 1.9056 1 3 4 6
49.48 1.45 1.8422 3 5 1 6
50.83 1.70 1.7962 3 2 4 6
51.01 1.23 1.7904 6 2 1 6
52.42 3.94 1.7455 7 1 0 6
52.77 1.89 1.7348 5 3 2 6
53.20 2.45 1.7217 2 5 3 6
53.20 1.63 1.7217 5 2 3 6
53.81 2.96 1.7038 0 5 4 3
54.23 1.54 1.6914 2 6 2 6
55.25 1.50 1.6626 2 4 4 6
56.67 4.10 1.6243 5 1 4 6
57.49 2.01 1.6030 4 4 3 6
58.47 1.12 1.5784 4 5 2 6
59.44 1.22 1.5550 4 3 4 6
62.14 1.82 1.4938 1 6 4 6
64.77 1.12 1.4394 7 0 4 3
65.15 1.99 1.4319 6 4 2 6
66.29 1.04 1.4099 3 0 6 3
66.44 1.03 1.4072 3 7 2 6
67.57 1.28 1.3863 2 2 6 6
71.48 1.52 1.3198 9 1 2 6
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.