Dissociatives Ketamine needle vs. sugar

[scabbard]

I've got a few questions here:

What's the main difference between ketamine shards and sugar?
I'm assuming what's termed "sugar" is just a powdered form of ketamine?
Can both of these be snorted?
Can shards be easily crushed into a powder without losing much if doing it with small quantities, and if not, can shards be dissolved in saline to administer through a nasal spray?

 

[someguyontheinternet]

just different crystal forms, both can be crushed and for snorting should be crushed to a very fine powder