|----------------------------------------------------------------------
        | Run-time Perple_X 6.6 options:
        | Comments must be preceeded by the "|" character.
        | Keywords and values are case sensitive!
        | For documentation refer to:
        |         www.perplex.ethz.ch/perplex_options.html
|----------------------------------------------------------------------
1d_path              40 150 | exploratory and autorefine (grid parameters keyword group)
approx_alpha           T    | use approximation exp(x)~1+x to evaluate expansivity effect on volume
Anderson-Gruneisen     F    | Anderson-Gruneisen parameter correction for polythermal Murnaghan and Birch-Murnaghan
auto_refine            aut  | auto, manual, or off (auto_refine keyword group)
auto_refine_factor_I   2    | refine factor for gridded minimization and phase fractionation (auto_refine keyword group)
auto_refine_factor_II  6    | refine factor for composition and mixed variable diagrams (auto_refine keyword group)
auto_refine_factor_III 2    | refine factor for Schreinemakers diagrams (auto_refine keyword group)
auto_refine_file       F    | echo auto-refine data to my_project_auto_refine.txt
auto_refine_slop       0.01 | 0->1 (auto_refine keyword group)
bad_number             0.   | any number
closed_c_space         T    | T[rue] or F[alse], default is T => closed composition space for gridded minimization 
composition            mol  | mol or wt; phase compositions
console_messages       on   | on or off
dependent_potentials   on   | on or off
efficiency             3    | 1->5
extrapolation          off  | on or off
grid_levels            1 4  | exploratory and autorefine (grid parameters keyword group)
hard_limits            off  | on or off
increment         0.1 0.025 | 0, <1; exploratory and autorefine
initial_resolution    0.02 | >0, <1
interpolation on       2    | value 1: on or off; value 2, 1->99
iteration            4 3 4  | value 1: 0->9; value 2: 3->99; value 3: 3->7
linear_model           on   | on or off
melt_is_fluid          F    | T[rue] or F[alse], default is F
option_list_files      T    | echo run-time options to my_project_PROGRAM_options.txt
order_check            on   | on or off
pc_perturbation       5d-3  | perturbation to pseudo-compound compositions, for Schreinemakers and Mixed-variable calculations
poisson_ratio on      0.35  | value 1: on, off or all; value 2: 0->0.5; poisson ratio estimates for shear moduli
proportions           vol   | vol or wt; phase proportions
pseudocompound_file    F    | echo static pseudocompound compositions to my_project_pseudocompound_list.txt
reach_factor          0.9   | 0.5->2
reaction_format    minimum  | minimum, full, stoich, S+V, or everything
reaction_list         off   | on or off
replicate_label      0.025  | 0->1, 0 - all replicate fields labeled, 1 - no replicate field labels
short_print            on   | on or off
site_check              T   | T[rue] or F[alse], T=> reject solution compositions with negative site fractions
solvus_tolerance       aut  | aut[omatic] or 0->1, must be > initial_resolution/auto_refine_factor
speciation_tolerance   1d-3 | tolerance for order-disorder speciation calculations, >0,<1 [1d-3]
stretch_factor        0.016 | >0, <1
subdivision_override   off  | off, linear, or stretch
T_melt                 873. | melt solution model endmember temperature (K) cut off
T_stop                   0. | equilibration temperature (K) cut off
variance              1 99  | 1->99; exploratory and autorefine
vrh_weighting          0.5  | 0->1, weighting factor for the Voigt average in the VRH averaging scheme.
x_nodes               40 60 | exploratory and autorefine (grid parameters keyword group)
y_nodes               40 60 | exploratory and autorefine (grid parameters keyword group)
zero_mode             1e-6  | 0->1
zero_bulk             1e-6  | 0->1