Card No: 2781       Created: 12/09/1994    Last edition: 11/07/2018

Name: MARICOPAITE
Specification: [1], DF
Formula: Pb7Ca2Al12Si36(O,OH)100 · [H2O]
Symmetry Class: orthorhombic
Space Group: C m2m
Unit Cell
Parameters:
a = 19.4340 | b = 19.7020 | c = 7.5380
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 2886.21
Number of Atomic Position
per full Unit Cell
:
P/U = 210 Molar Volume, cm3/mol: Vm = 1738.47
Number of Reflexes used in
Structure Determination
:

NR = 1189
X-ray density, g/cm3: p = 2.79
R-factor: R = 0.0460MU, 1/cm: µ = 259.801
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 92.974
Theta-Interval for CPDP: T/I = 1-30