concretion

A concretion of rounded quartz pebbles, cemented by ferruginous matter, apparently of recent formation.

In the first place, what common element is there in matter, form, and the concretion of matter and form?

Phleb′olite, a calcareous concretion found in a vein; Phlebol′ogy, science of the veins; Phleb′orrhage, venous hemorrhage.

Again, The concretion of Ice will not endure a dry attrition without liquation; for if it be rubbed long with a cloth, it melteth.

And many bodies will coagulate upon commixture, whose separated natures promise no concretion.