Can anyone tell me what this is!!

[briannasaurdiff]

Ok so I have this lace rock and I have no idea what is growing on it I'm assuming whatever it is is dead but I need to know it won't kill my shrimp if I put it in with them I have no idea how to post a photo on here for some reason... I did it the other day and I don't remember how... It's like orange little balls its been in my garage in a bag and the rock is lace rock. But I can send someone photo of it to there email or phone if u pm me.! Please help lol

 

[briannasaurdiff]

Wait I got it!! Ok here it is

 

[Cory]

It's Lichen, just scrub it off.

 

[briannasaurdiff]

I did scrub it but can't get it all off will it hurtthe shrimp

 

[Livebearer]

No it won't and may be a boi-film for them too

 

[Livebearer]

This is actually a lava type conglomorate. I see it in the rock shows I attend every year.