Stupid question about silver content in modern commemoratives

I see the prices on the PCGS site for “modern silver commemoratives” listed individually but the silver content is not noted. Then below are the “modern commemorative sets” which house the same coins but the word “silver” is not in the title… are the coins in those sets also made from silver?
Are all modern commemoratives made of silver or no?
If so, is there a list somewhere of the silver content? ... and if not, is there a way to tell the silver from the non silver?
Are all modern commemoratives made of silver or no?
If so, is there a list somewhere of the silver content? ... and if not, is there a way to tell the silver from the non silver?
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Russ, NCNE
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
The reason I'm asking is, I have a bag of these and of course, I'd like to know which are silver and which are not.
Looking more closely... under silver commemoratives they list, 1986-D 50C Statue Of Liberty, 1989-D 50C Congress, 1991-D 50C Mount Rushmore, 1995-S 50C Basketball, and several more...
...so, if I have a 1986-D 50C Statue Of Liberty are they all silver or are there clad and silver versions?
Overland Trail Collection Showcase
Dahlonega Type Set-2008 PCGS Best Exhibited Set
I guess I'm reading something wrong... can you tell me what?
PCGS.com Modern Silver Commermoratives
Just Washington and Bill of Rights. I have them both.