Improved ADOM Guidebook

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Appendix H - Gems - complete list

Gems *
Name UnID'd Name WeightEffect Value Made of
crystal of darkness brown gem 1s used, darkens area around PC low crystal
crystal of fire red gem 1s used, fireball, 6d6 damage if thrown or used with slingaverage
crystal of health blue gem 1s used, restores 12d12/6d6/3d3 HP average
crystal of knowledge green gem 1s used, magic maps; if blessed, +1d2 Le [3] low
crystal of light white gem 1s used, lights area around PC low
crystal of power red gem 1s used, restores PP: +6d16/+3d8/-4d12 PP [2]low
amber stone brown gem 1s   average crystal
aquamarine blue gem/green gem1s above average
emerald green gem 1s high
opal white gem 1s average
ruby red gem 1s very high
sapphire blue gem 1s very high
topaz brown gem 1s average
turquoise blue gem/green gem1s high
worthless piece of blue glass blue gem 1s   very low glass
worthless piece of brown glass brown gem 1s
worthless piece of green glass green gem 1s
worthless piece of red glass red gem 1s
worthless piece of white glass white gem 1s
gold piece   0.01s H(+0, 1d1) M(+0, 1d2) [1] 1 gold

[1] The gold piece damage is significantly better for Merchants.
The amount of gold creation is DLd30-1 + DLd10-1 + DL*5, Miser has a 1/5 chance to increase it by (1d20+100) * PreviousTotal/100.

[2] Blessed may give +2d2 MaxPP, cursed -2d2 MaxPP. Actual chance is based on Luck, maximum 25%.

[3] Le<20:+1d2Le; else (100-((Le-19)^2))%:+1d2Le; 1%:+1d2Le; see also

Gems are meant as means to carry wealth effectively - however it is not too effective in ADOM, as even "very high" usually translates to about only 500gp. Gems can be used with slings. The base damage value is (+0, 1d1) rather than the (+0, 1d4) of a rock, but gems are lighter, and crystals of fire will create fireballs at their point of impact.

Updated August 26th, 2005