Nucleation rates of Cr[s] using MCNT (Eq. (7)). Left: contours of log₁₀J_* [cm⁻³ s⁻¹] of Cr[s] (colour bar and thin black lines) across the temperature-pressure grid, and the gas-solid phase equilibrium S (T _gas, p _gas) = 1 zone (thick black, solid). Right: S = 1 phase equilibrium result (black, dashed) and selected log₁₀ J _* contour lines (black, dotted) compared to log g = 5, T _eff = 1800 K (green, solid), 1000 K (purple, solid), Drift-Pheonix (Witte et al. 2009) and T _eff = 400 K, log g = 5 (dark orange, solid), Exo-REM (Baudino et al. 2015, 2017) brown dwarf (T _gas, p _gas) profiles and Jupiter (brown, solid; Rimmer & Helling 2016).