Silver ore rocks

A rock is a protruding rock containing silver ore. A player with a Mining level of 20 or higher can mine silver ore  from rocks found in various mines,  granting 40 Mining experience for each ore mined.

Locations
One of the best places to mine silver ore is the Crafting Guild. It is far from a furnace and bank,  but in return boasts the highest concentration of silver rocks in F2P  worlds. Silver ore can also be stolen through the Thieving skill from a market stall in Ardougne  and also in Keldagrim. Another alternative is the mine north of Al-Kharid (in this mine one silver rock is  exhausted - See Exhausted silver ore), but it is often  full. Also in Al-Kharid, there are large brown scorpions which are level 14,  so beware when mining, although low-level players can avoid them by  bringing plenty of food and staying clear of them at the right times. Silver ore can also be found in the mine south-west of Varrock, near the main south entrance where the dark wizards are, although the mine is safe  from their interference. The Karamja volcano has 3 spawn locations and there is a bank nearby for members.

One tactic is to mine a full inventory at the Crafting Guild, then use a Ring of Duelling to teleport to Castle Wars, then return to  the guild using a Skills Necklace.

Respawn Rate
Same as gold ore's respawn rate.