Gem staves

Gem staves are magic weapons that fire a brightly glowing projectile traveling at medium speed. There are currently 7 types corresponding to the 7 different gems. Higher-tier gem staves are capable of piercing one enemy. All gem staves, except the Amber Staff, are crafted from gems and bars at the Iron or Lead Anvil.

Types

Staff	Damage	Mana	Pierces	Velocity	Use time	Knockback	Ingredients	Autofire	Rarity	Sell
Amethyst Staff Internal Item ID: 739	15	5	0	6	37 (Very slow)	3.25 (Weak)	Copper Bar10 Amethyst8	❌	00*	4
Topaz Staff Internal Item ID: 740	16	5	0	6.5	36 (Very slow)	3.5 (Weak)	Tin Bar10 Topaz8	❌	00*	6
Sapphire Staff Internal Item ID: 741	18	6	0	7.5	34 (Slow)	4 (Weak)	Silver Bar10 Sapphire8	✔️	01*	20
Emerald Staff Internal Item ID: 742	19	6	1	8	32 (Slow)	4.25 (Average)	Tungsten Bar10 Emerald8	✔️	01*	30
Amber Staff Internal Item ID: 3377	21	7	1	9	28 (Average)	4.75 (Average)	Sturdy Fossil15 Amber8	✔️	01*	40
Ruby Staff Internal Item ID: 743	21	7	1	9	28 (Average)	4.75 (Average)	Gold Bar10 Ruby8	✔️	01*	40
Diamond Staff Internal Item ID: 744	23	8	1	9.5	26 (Average)	5.5 (Average)	Platinum Bar10 Diamond8	✔️	02*	60

Notes

Not all ores can be obtained through mining in one single world. Only 4 of the 7 types of gem staves will be easily craftable in any given world; alternative metals can be had from a crate, bonus drops from a slime, or Extractinator, but even all of these together represent quite low amounts of any given metal.
In pre-Hardmode, the Amber Staff can only be obtained through materials produced with an Extractinator, killing Tomb Crawlers, or opening Oasis Crates; these are the only ways to get Sturdy Fossils before Hardmode. Prior to 1.4, the Extractinator was also the only way to get Amber.
Like most other projectiles, the speed of a gem staff's projectile is affected by liquids.

Tips

Gem staves can be divided into tiers based on their strength and behavior:
- 1st tier lacks both autofire or piercing: Amethyst, Topaz, Sapphire
- 2nd tier has autofire and piercing: Emerald
- 3rd tier has high damage and fast speed: Amber, Ruby, Diamond
Their bright glow, reasonable mana cost, and auto-fire from the higher tiers make gem staves handy cave exploration tools.
A gem staff can be considered the magical equivalent of the Musket, being the first weapon of their class a player will often obtain and quite strong for when they can be obtained. Note that in the Desktop version, Console version, and Mobile version, the Wand of Sparking can be obtained prior to a gem staff.