Crystal Berries

[drowsiestprince]

In the Ballad of the Crystal Ponies, Applejack says they "made sweets of crystal berries". I think it'd be fun to implement crystal berries as a berry with a higher saturation than vanilla sweet berries. It has to be grown out of amethyst blocks, and spawns naturally in geodes! You could potentially use them to make various sweets with a higher saturation, like a pie, fritter, or jam/nectar. Maybe they could give non-crystal ponies a temporary shimmery crystal overlay? (think the enchantment effect seen on armor, but over the skin itself, and maybe white rather than enchantment purple.)

This would also go nicely with some of the recent suggestions I made in #149 regarding Farmer's Delight.