I have a crystal grainy like substance constantly coming out of my eye. can even see where tears were, like drips of salt? what is this?

"dandruff" of eyelid: Two possibilities: 1). Dandruff of the eyelids aka blepharitis can occur with low grade bacterial infection and this responds well to warm compresses and scrubbing off the dandruff flakes with baby shampoo or a commercial product called ocusoft or sterilid. 2). An extremely dry eye could cause it. You might benefit from a prescription called Restasis eye drops. Try the above scrubs/see EyeMD

R/O BLEPHARITIS : Blepharitis vs Conjunctivitis. You need to be examined to differentiate the two. They may be superimposed requiring topical and oral therapy .