Your description 'a soapy feeling that is very difficult to wash off' is exactly what sodium hydroxide mixed with water (a basic solution, maybe 13+) feels like and is usually described as....which would lead me to believe that you have indeed aquired what you thought. Which is a non-aqueous solvent and based solution in a container together...so to extract anything that might be suspended within the layers you'd want to check the ph of the aqueous layer and make sure it is 13+, if so then shake gently and then recover the solvent layer, dry it and then gas it.
If there is anything present it will precipitate out once you gas the solvent. Good Luck. Pyrex out of layers to process ;-)