Cobweb Cake Decoration. Calcite generates naturally as part of the structure of amethyst geodes, between the smooth basalt and block of amethyst layers. Calcite is a carbonate mineral, currently used as a decorative block.
Glowing obsidian emits a light level of 12. Calcite drops as an item if mined by any pickaxe. Glowing obsidian drops itself only when mined with a diamond pickaxe or netherite pickaxe;