Per 
SCP-5742 Crystal
Item 1: SCP-5742
Object Class: Keter
Special Containment Procedures: How to Contain him?- To contain (The Blind Crystal) You will have to use lots of electricity on him, You need Night vision to see the scp,
Guns do not effect because he is a little like a ghost. ( Scp Cell )- The scp cell has to have strong walls
around his crystal and him, and the walls height is 10m , and he needs to have lots of electricity in his body to make him go back into his crystal, Because he does not like electricity a lot, and Really Loud sounds, His ears cant take a lot of the sound, and he will scream louder running back to his crystal, You will need Mobile Task Force ( At least 5 ) to protect its cell and make sure the Mobile Task Force have night vision and electricity weapons ( Or Electricity Shockers/ Tasers ) ( Tasers Does low Damage ) )
Description ( What does the scp look like??? )- ( Crystal Look ) The scp looks like a cursed crystal with sharp edges and as big as a diamond, ( Scp look ) Also something or thing can come out of the crystal, he looks like a ghost with really sharp fingers,Disgusting face and really tall. If you look at the crystal you can not see anything the only thing you will see it black, After you get blind he comes out of the crystal and no one that's blind or have no one with Night Vision can see him but only Foundation L with night vision can see him, The Blind Crystal attacks them because the person that's in the crystal does not want his crystal to be stolen by anyone, Also if you touch the crystal you will disappear ( Some Foundation call it ( The Crystal Trap ) They think you enter his place and see lots of things that they don't know, if you steal his crystal when he is not inside it he will be really angry and worried and chase his crystal and he will turn into multiple of himself to find the robber, Also he goes as fast as he can to get the robber.
Addendum: He sometimes comes out of his crystal to make sure no one is there to make sure no one can steal his crystal, ( He loves his crystal a lot and he does not want anyone else to have it but him ) He is kinda slower then the SCP-096.
