This was added in Experimental Snapshot 4:

"Stone shores sometimes generate layers (strips) of gravel, diorite, andesite, or granite. Stony peaks sometimes generate layers of gravel, calcite, andesite, or granite. No more need to destroy geodes to get calcite "

This change has not been brought forward to the Snapshot 21w37a (https://twitter.com/Badgerisi/status/1438193302336069643?s=08 , https://twitter.com/henrikkniberg/status/1438405615550873603?s=08 )

seed 7310561181964254844

/execute in minecraft:overworld run tp @s -623.63 123.25 316.85 -67.81 67.35

/execute in minecraft:overworld run tp @s -965.74 108.25 -361.58 -841.96 61.05