The main point of identification is to correctly attribute a country/manufacturer to your piece. It appears that two experienced members have already expressed doubt as to it being "Murano". Too often, this tag is lazily dangled in front of art glass purely to achieve a sale, whereas GMB members here do not necessarily have any profit motive.
Personally, I think I'd be happier with a Scandinavian attribution... however, I think if a mod were to change the title of this thread to something more inclusive, such as "Geode, unknown maker, but who???", it might achieve more success.
As Sue points out, if it is IDed as Murano, then it can be moved back to that forum.