Could glass displace (your fave) tweeter material?

At Axpona this year, I listened to some stand mount two-way monitors with both glass diaphragm tweeter and woofer.  I have no idea if the measurements are good but they sounded really nice. 

I believe it was by the company GAIT. 6.5 inch glass woofer and 1 inch tweeter.

GAIT Glass Acoustic Innovations | Glass Diaphragm

@karl_desch 
 

I believe it was by the company GAIT. 6.5 inch glass woofer and 1 inch tweeter.

GAIT Glass Acoustic Innovations | Glass Diaphragm

Very cool tech.  Would like to hear real world pros and cons from those who've used them.  

Ceramic is a sound tweeter glass is silica made with other components 

diamond by far the most rigid , you internal Xover and capacitors will dictate the tweeter sound have modded Xovers for over 20+ years you want something with a little body for a neutral or bright tweeterlike a Mundorf supreme silver oil which is excellent on top but a little expensive

so I’m sure you know beryllium is only toxic when being machined , sanded or otherwise being physically worked with creating dust or fumes. 

@ronboco  - Thanks for the complements but I was referring to Be tweeters being potentially toxic when damaged.  I quote one of Focal’s own manuals: 

If the beryllium dome is damaged in any way, it should be covered as soon as possible. We recommend that you contact the retailer to have the tweeter dismantled and replaced by trained personnel at the distributor.

If the dome is broken, any beryllium particles should be carefully collected and then placed in a hermetically sealed plastic bag. It should be sent back to the retailer at the same time as the speaker.

I’m unaware of ANY other speaker component or material having similar instructions.   It is perfectly safe to be around adults who aren’t busy sticking their thumbs into it, but it IS more brittle than aluminum or titanium and, as you point out, the dust is toxic when inhaled.  So long as you avoid damaging them they are fine. 

This potential danger is also a reason why many manufacturers only sell Be tweeters with integrated screens.   

Having said all that, with normal precautions no reason why you should avoid them.  I only meant to say that if glass gave similar performance to Be without the sky high prices for Be today and had a better safety profile they’d make excellent replacements. 

Your ears and wallets should judge, as always.