Chisels/Gemstones

Each Gemstone type grants a different buff to the Chisel, and is not affected by rarity, unlike all other instances of Gemstone being applied:

Gemstone		Bonus	Value by gemstone tier
Slot	Name		Rough	Flawed	Fine	Flawless	Perfect
	Aquamarine	#% chance to gain an additional Chisel charge upon starting the Fossil Excavator.	30%	40%	50%	60%	100%
	Citrine	#% chance to highlight a piece of treasure upon starting the Fossil Excavator.
	Onyx	#% chance to spawn an additional piece of treasure upon starting the Fossil Excavator.
	Peridot	Gain +#% Fossil Essence when using the the Fossil Excavator.