Sacrite rocks

Sacrite rocks are a type of rocks which can be mined through the Mining skill, which requires a mining level of 100+, granting 350 mining experience. The rocks respawn on average after 5 minutes. The rocks can only be found in the Celestial dungeon. Since their are only 7 rocks in the dungeon, there are only 7 in the whole of runescape. A player can only access the area of the dungeon which contains the rocks, if the yhave 80+ mining and smithing. While mining the rocks, a player has a 1/2000 chance of obtaining an Oceanstone(this is the same for every mithril, admantite and runite rock in the dungeon), the gem is extremely rare to come by, so a 1/2000 chance is still better than a 1/10000 chance(which is the chance of receiving the gem from mining in any other area).