Prospector kit

RS

A player wearing the prospector kit.

The Prospector kit is an experience-boosting set that grants a 2.5% bonus Mining experience when the full outfit is worn.

Wearing full prospector while entering the Mining Guild is one of the tasks in the hard Falador Diary. Trying to complete this task using the Varrock armour 4 will not work.

Similar to the Desert robes and various other desert-related items, wearing the full Prospector Kit in the desert will reduce the amount of waterskins needed to survive.

Pieces of the kit may be purchased from Prospector Percy in the Motherlode Mine using golden nuggets obtained randomly through prospecting pay-dirt. The set costs 180 nuggets in total.

Full Prospector is needed for a Master Clue, Varrock armour 4 can be used.

Obtaining

	Item	XP Boost	Cost (in )	Sells for (in )	Boost per nugget (% per )
	Helmet	+0.4% XP	40	32	0.010
	Jacket	+0.8% XP	60	48	0.013
	Legs	+0.6% XP	50	40	0.012
	Boots	+0.2% XP	30	24	0.007
Set bonus		+0.5%
Complete set		+2.5 %	180	144	0.014

When obtaining this particular set, the most efficient method for gaining a higher amount of boosted xp over time is to start by purchasing the cheaper items first, even though they offer a lower boost per nugget. This can be calculated by adding up the xp boosts one would get when buying the items in either order. For both calculations, the variable x is the amount of pay-dirt it takes to receive a nugget. Pay-dirt is received at a constant rate of 2.94%, so x can be substituted with 1 for easy calculation. y is the amount of mining xp each pay-dirt awards the player, which is also a constant and can be substituted for 1.

Cheap First

Purchasing the boots, helmet, legs, and jacket, in that order gives:

(30x * yx) + (40x * yx * 1.002) + (50x * yx * 1.006) + (60x * yx * 1.014)

Substitute 1 for x and y:

30 + (40 * 1.002) + (50 * 1.006) + (60 * 1.014) = 181.1

Expensive First

Purchasing the jacket, legs, helmet, and boots, in that order gives:

(60x * yx) + (50x * yx * 1.008) + (40x * yx * 1.014) + (30x * yx * 1.018)

Substitute 1 for x and y:

60 + (50 * 1.013) + (40 * 1.025) + (30 * 1.035) = 181.5

Conclusion

Based on the above numbers, over the time it takes you to obtain the set, you're better off starting with the cheaper items first because the incremental xp boost over time will be higher if you have smaller xp boosts while obtaining the nuggets for the higher tier items.

Trivia

• Similar to the Desert robes and various other desert-related items, wearing the full Prospector Kit in the desert will reduce the amount of waterskins needed to survive. This was confirmed by Mod Ash during the RuneScape Mythbusters Special - Ep. 2 on Jagex's official Old School RuneScape YouTube channel.

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