Silicone has no adhesive properties. Maybe it was silicone mixed with an adhesive? There are scores of brands and type of silicone mixes.

Perhaps your efforts would be better spent contacting the local glass company.

Jim, the owner of the company is coming back to reinstall the glass.

Even with silicone adhesive, have you ever heard of installing shower glass to a wall without any hardware?

Silicone Based adhesives are used to attach exterior glass panels in high rise buildings.

Sometimes they fail too.

Oh, that would be a much worse fail.

In a shower, I'll take a couple of metal clips over the potential fail of adhesive alone.

Have the glass company show you the catalogs for shower clips. There are many options and some are more attractive than others. Don't let them choose for you.

I had heavy duty ones installed in one shower door and the glass company guy wasn't going to offer them to me because they were $20 more each. Really? I gladly paid $40 more, which was insignificant for a whole bathroom gut/remodel. The heavy duty clips/hinges allowed the glass door to be a few inches wider.

"Silicone has no adhesive properties."

Yo Jim, the next sink replacement job I get I'll let you try to scrape the silicone off the bottom of the stone and then tell me if silicone has adhesive properties or not.

chispa, we have metal clips on the swing door. and chose them from the C R Lawrence catalog because they matched the style of the rest of the Hansgrohe hardware. We initially thoughts we'd have something similar for the glass wall but the glass guy is the one who said silicone is a better way to go for the wall.

Joseph Corlett, LLC, I know you are a stone / countertop guy, but have you ever seen glass walls secured without hardware?

Here's where we were lucky the rainshower was strong enough to hold the glass and stop it from hitting the niche.

We are also lucky it didn't smash into the toilet

I"ve seen very large fish tanks held together with nothing but silicone. That's much more pressure than any shower will get.

The glass company had a technician come to the house yesterday. This time they fully cleaned the wall before installing this clip at the top. Then re-siliconed the glass on both sides and along the bottom.

Hope this post helps someone else in case a glass company says that clips are not necessary.