In 1749, Thomas Frye took out a patent on a porcelain containing bone ash.
From the en.wikipedia.org
Bone ash was the major source of phosphorus until the 1840s.
From the en.wikipedia.org
Other raw materials can include feldspar, ball clay, glass, bone ash, steatite, quartz, petuntse and alabaster.
From the en.wikipedia.org
Here, researchers have found buried human remains, tools made of stone and bone, ash from hearths, and leftovers from meals of fruit and small game.
From the huffingtonpost.com
Demonstrating the link between phosphorus and life, elemental phosphorus was historically first isolated from human urine, and bone ash was an important early phosphate source.
From the en.wikipedia.org
I like to add a few cups of wood ash and bone meal and a bag of powdered limestone.
From the washingtonpost.com
Add a few cups of wood ash and bone meal and a bag of powdered limestone.
From the timesunion.com
Only a stone memorial guards their place, surrounded by tall grasses that hide bits of ash and bone deep beneath their roots.
From the nytimes.com
The funeral pyres, once piled more than a meter high, are now nothing but smoldering heaps of ash and fragmented bone.