Minecraft wiki entry for Crying_Obsidian, associated text: 1 Obtaining
1.1 Breaking
1.2 Natural generation
1.3 Chest loot
1.4 Bartering
2 Usage
2.1 Crafting ingredient
2.2 Light
2.3 Note Blocks
2.4 Piston interactivity
3 Sounds
4 Data values
4.1 ID
5 Advancements
6 History
7 Trivia
8 Gallery
9 References