Rock crystal ores generated by the treasure shrine do not drop any rock crystals when broken:

However, if you use a piston to move the rock crystal ore out of the ore generating TE, then the rock crystals drop normally:

AS: astralsorcery-1.12.2-1.7.2
Forge: Forge Mod Loader version 14.23.0.2522

Maybe this should be a separate bug, but adding on to treasure shrine weird interactions. Same versions as above.

1. Silk touch does not drop the blocks version of coal/redstone
2. Using the ME Identity Annihilation Plane (the AE version of silk touch) drops both the block and the items (such as dropping both coal and coal ore).

Ah, yea, i forgot to label that. it's fixed in dev.