  We study distributions of differences of unscaled Riemann zeta zeros,
$\gamma-\gamma'$, at large. We show, that independently of the location of the
zeros, their differences have similar statistical properties. The distributions
of differences are skewed towards the nearest zeta zero, have local maximum of
variance and local minimum of kurtosis at or near each zeta zero. Furthermore,
we show that distributions can be fitted with Johnson probability density
function, despite the value of skewness or kurtosis of the distribution.
