Bailey's Tinderstone

You can use an action to speak a  command word then drop the Tinderstone, this will cause it to activate. Anyone can deactivate the Tinderstone if they know the command word and speak it within 10' of the gem. While activated the Tinderstone creates the following effects;

• The gem will cast radiant heat as a large campfire and will ignite flammable materials. Although without visible flames, the thermal energy may be used to cook, warm feet, roast smores or burn the flesh of anyone foolish enough to stick a body part in its 5' radius. Wood or other combustibles may be added into its space to create a larger fire.
• If it is dropped into water ( or other liquid ), it will heat up to 10 gallons of water to a boil or 20 to 50 gallons of water to Hot Tub levels ( approx. 100*F ),  in 1 minute.
• The Tinderstone glows yellow providing light within 10' and dim light within 20'. Unless underwater, then the light is green and only sheds 10' of dim light.

If the gem takes 10 or more bludgeoning damage it will explode, also, the Tinderstone may be thrown and if the damage it does to its target is 10 or more points, the  gem will explode.  if the gem explodes it inflicts 3d6 damage to everything within 10'., Dexterity save for half. 

Notes: Utility, Jewelry, Warm