Gemstone Blocks

Gemstone Blocks can be crafted at a Heavy Work Bench in the Graveyard Mini-Biome, or found naturally generated in the world. When mined, they drop one of their respective gems.

Crafting
In descending order of rarity and value (rarest at the top):

Trivia

 * Before 1.4.0.1, these blocks could not be in a player's inventory, as they were exclusively naturally generated.