You can buy a Mithril Pickaxe from Nurmof's Pickaxe Shop in the Dwarven Mine, but beware of the much more expensive price offered by the shop. You can also buy it off of the Grand Exchange for the best price in RuneScape shops. It's also possible to obtain a Mithril Pickaxe from monster drops from Living Rock Protectors, Dagannoth Rex, and Living Rock Strikers.
The chance that you will receive a Dragon Pickaxe is relatively low, It's is as equal as getting a Dragon Full Helmet from A Mithril Dragon, within an Hour.
this is not runescape. Mithril is only on runescape.=/
Bronze pickaxe - 181 coins Iron pickaxe - 108 coins Steel pickaxe - 948 coins Mithril pickaxe - 478 coins Adamant pickaxe - 1468 coins Rune pickaxe - 18761 coins Dragon (m) - 16.3 Million Coins
Mithril Dragon's are level 304, and are not to be taken lightly.
Rune Pickaxe - 18,145gp - 20,055gp
Mithril Ore is currently 488gp ( Market Price ) in the Grand Exchange.
from grand exchange ~1.6k
Grand Exchange
After being mined, a mithril rock takes an average of 3 minutes to respawn.
All except for Mithril can be found in the Brimhaven Dungeon. Mithril Dragons can be found on the second level of the Ancient Cavern.
You don't. However, you can make mithril items with the smithing skill. You make them from mithril bars, which you can make yourself from mithril ore and coal, which you can get with the mining skill.
In my opinion it is a mithril scimitar.