My bottle of Edelstein Topaz has a scent that I've never smelled before in an ink. It's a weird odor that I don't know how to describe other than kind of sweet. Is this normal? I've only had the bottle for about a month and the smell hasn't changed since first testing it, but after buying a bottle of the Edelstein Tanzanite (which does not share this strange fragrance) I thought it might be best to ask before trying the Topaz again (this time in one of my favorite pens). Thank you all for your help!