Being blocks made of a valuable material, one may expect them to be considered valuable enough to be a beacon pyramid material. However, they are treated as any other block and the beacon does not care.
Linked issues
duplicates 1
Attachments
Comments 2
Thank you for your report!
However, this issue is a Duplicate of MC-170899.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Duplicate of MC-170899 unless this is considered better and forward-resolvable