These are typically veins of glowstone that can be among the hardest natural materials to harvest that don't require digging. They form in coral-like structures on the underside of hanging Netherrack, so they are often found on the ceilings of the Nether, where they provide light along with the ever-present lava.
Glowstone blobs consist of one block-wide tendrils extending from a central clump. Being found in caves, hanging above an ocean of lava and even within nether fortresses, they are the main source of charges of glowstone for respawn anchors.
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|Java Edition Alpha|
|v1.2.0||preview||Added glowstone blobs.|
|Pocket Edition Alpha|
|v0.12.1||build 1||Added the Nether, along with glowstone blobs.|
A naturally generated glowstone cluster in basalt deltas.
- "mcdata/processed/reports/registries/worldgen/feature/data.json" by Arcensoth – github, July 24th, 2020.