Does a UK residence card count as an Article 10 residence card?

My wife and I are travelling to Iceland later this year. I am an EEA national (British) and my wife is a non-EEA national (Chinese). We live together in the UK where she is on a spouse visa and holds a biometric residence permit. As per my understanding, my wife can enter Iceland as a "family member of an EEA national" provided that she holds an "Article 10 residence card" and travels together with me.

Assuming I have understood correctly, the next step that my wife needs to apply for such an "article 10 residence card". I have not been able to find any definitive information on what this is from searching online. I find lots of information about how to use an article 10 residence card issued by another country to enter the UK, but not on how to get an article 10 residence card issued by the UK for the purpose of entering another country.

My best guess would be that a "UK residence card" issued by the UK as per the following page counts as an article 10 residence card:

https://www.gov.uk/apply-for-a-uk-residence-card/overview

Annoyingly, there is no information on the government website about whether it counts for travel or not.

I am assuming that the "residence permit" which my wife currently holds does NOT count as an "article 10 residence card"...

Can anyone clarify and/or correct my understanding?