Coal ball
id:
coal-ball-269-2050524
title:
Coal ball
text:
A coal ball is a type of concretion, varying in shape from an imperfect sphere to a flat-lying, irregular slab. Coal balls were formed in Carboniferous Period swamps and mires, when peat was prevented from being turned into coal by the high amount of calcite surrounding the peat; the calcite caused it to be turned into stone instead. As such, despite not actually being made of coal, the coal ball owes its name to its similar origins as well as its similar shape with actual coal. Coal balls ofte
brand slug:
wiki
category slug:
encyclopedia
description:
Stone of peat that did not turn into coal
original url:
https://en.wikipedia.org/wiki/Coal_ball
date created:
date modified:
2024-04-23T04:38:58Z
main entity:
{"identifier":"Q574636","url":"https://www.wikidata.org/entity/Q574636"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/5/54/Coalball.jpg","width":640,"height":482}
fields total:
13
integrity:
15