Torches are placeable items in Azure Mines that emit light that makes it easier to see underground. Torches are essential for really low depths when you can barely see even with a lamp. There are three types of torches:
The Torch has an easy recipe making it easier to obtain but not as bright as Uranium Stick. It is very cheap to make, costing only a single coal.
Uranium Stick Edit
Glass Candle Edit
Glass Candle emits a purple light. The candle is the brightest of the three torches, but also the hardest to obtain. It requires 3 Dragonglass to craft.