The other posters are right: there is no way to tell, please get a scale and weigh the mushrooms when fresh or cracker-dry, nothing inbetween. You can use the Erowid website to check experience reports and info on dosage, or come back to our forum when you have more info.
I don't know if you found them but if you got them from someone, did you not get help / info / instructions. If you did hunt for them, be careful and make sure they are the right species.
We understand you would like to know what you can do with them, but it's just not really possible. If you have anything to ask or add that matters / changes anything, you may PM a mod. You can also create a new thread if it has a clear premise / question and enough info for people to answer it.