There's some discussion.

"If we shined a lot of light at the page, would it be damaged?"

"...not as far as I know."

"Well. We'll want to scan the page, and then figure out a non-destructive analysis plan for the ink. Do you know if the paper type is important?"

"The paper has to be good-quality - parchment is preferable for scrolls, but spellbooks are often paper like this one, and if you want to sample a tiny corner with no writing on it that should not damage the inscription's magic. Apart from the quality I don't know there to be specific requirements."

"The way a scanner works is it presses a document flat against a piece of glass, shines a light at it, and takes pictures. It's just normal light, safer than what you'd get on a sunny day. Do you think that will cause any problems?"

"I have no specific reason to think that would be a problem."

"Great!"

In that case they will scan the spell page.

The spell page scan is not magical but presumably they are aware of that.

"That makes sense. Do you remember seeing anyone else's spellbook?"

"I have on occasion seen wizards preparing their spells or packing their things, yes."

"Do the diagrams always get drawn at the same size?"

"That is a level of examination I've never undertaken but my understanding is that every wizard winds up with idiosyncrasies in how they notate spells and that might be among the things that vary, I wouldn't expect to know either way."

"Do you know if the books always have the same page size?"

"The ones I have seen were not obviously different but Chelish ones in particular may be mass produced and I imagine they would be awkward for smaller or larger races."

"Okay."

Some more discussion.

"Do you know if this is more delicate than a nonmagical manuscript?"

"I don't think the scribing process makes the paper any easier to tear, but it is probably more sensitive to small scratches in the inscription."

There are no obviously useless ink blobs on the paper, either. It's inconvenient.

"All right. We'll get back to you when we have a plan for chemical analysis. Do you know if the process of writing the page itself required magic, or just very precise writing?"

"I believe it would not have required casting a spell, but that's not identical to magic, and that I'm not sure about."

"Thank you. That's still very helpful."

"Perhaps it will allow you to get somewhere."

"Currently we're thinking of getting inks involving plausible candidate metals, making replicas of the page, and asking you if you can cast from any of them. We normally have methods for determining what chemicals are in the ink, but even the ones which are non-destructive can be a bit like a really tiny scratch."

"Spellbooks do normally hold up to many years of ordinary use, and only some wizards store theirs in the Ethereal Plane. So I don't know that a very tiny scratch would be an issue. But it would certainly be a risk with the only written magic on the planet."

"Yes, exactly. You also mentioned having some magic items, what can you tell us about those?"

"My mace and my chainmail are both magic. They are by contrast to the spellbook page quite hard to damage although I don't know if this will help you at all with narrowing down what spellsilver is, because I'm not sure if any remains in the final construction, or if it's expended in the enchantment and turned into a base metal in that process and discarded. They are not what I would call interestingly magical; they are each only the bare minimum amount of magical for arms and armor - a little more accurate and harder-hitting, and a little better at protecting the wearer, respectively."

"Well, it's certainly worth taking a look at the composition even if it might not help."