Dating of volcanic ash
25 volcanic ash may be used on a compost bin filled with supercompost for 15 buckets of ultracompost essentially saving 5 ashes per bin (volcanic ash can be used right after a compost potion) alternatively two ashes may be used on a bucket of supercompost to create an ultracompost.
If players have read the ash covered tome, they can have the Fertile Soil spell treat a farming patch with ultracompost instead of supercompost by casting the spell while having two volcanic ash in their inventory.
Mining gloves, Varrock armour of any tier, or the Mining cape do not affect the yield when mining volcanic ash. Volcanic ash is used to create a variety of farming-related items.
Hot, newly erupted lava and ash contain a form of the chemical element potassium (called potassium-40) that is radioactive.
Lucy and other members of her species, Australopithecus afarensis, lived between 3.9 and 3.0 million years ago.
They are believed to be the most ancient common ancestor, or "stem" species, from which all later hominids sprang. Estimating the age of hominid fossils is usually a painstaking, two-part process, involving both "absolute" and "relative" dating.
The technique can date materials the size of one grain of volcanic ash, using a laser.
There are other methods which can be used as well which operate using different radiochemistries.