Pyrolusite
Wyckoff R W G
Crystal Structures 1 (1963) 239-444
Second edition. Interscience Publishers, New York, New York
Note: beta phase of MnO2, rutile structure
_database_code_amcsd 0011760
4.396 4.396 2.871 90 90 90 P4_2/mnm
atom    x    y z
Mn      0    0 0
O    .302 .302 0