Card No: 1702       Created: 09/09/1994    Last edition: 13/01/2009

Name: GATEHOUSEITE
Specification: [1], structure type - arsenoclasite
Formula: Mn5(OH)4[PO4]2
Symmetry Class: orthorhombic
Space Group: P 2(1)2(1)2(1)
Unit Cell
Parameters:
a = 18.0020 | b = 5.6930 | c = 9.0970
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 932.31
Number of Atomic Position
per full Unit Cell
:
P/U = 76 Molar Volume, cm3/mol: Vm = 140.39
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.79
R-factor: -MU, 1/cm: µ = 606.313
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 159.823
Theta-Interval for CPDP: T/I = 1-45