Pudding Stone

A most peculiar stone, I’m told,

     The puddingstoner of today;

Unlike the crumbling mass of old

     It’s tough, and knoweth not decay.

It crumbles not when put to test,

     A higher grade of rock is this;

Like precious ore, I will be blest,

     The more it’s knocked the harder ‘tis.

Nov. 10, ‘09

Puddingstone, also known as either pudding stone or plum-pudding stone, is a popular name applied to a conglomerate that consists of distinctly rounded pebbles whose colors contrast sharply with the color of the finer-grained, often sandy, matrix or cement surrounding them. The rounded pebbles and the sharp contrast in color gives this type of conglomerate the appearance of a raisin or Christmas pudding. There are different types of puddingstone, with different composition, origin, and geographical distribution. Examples of different types of puddingstones include the Hertfordshire, Schunemunk, Roxbury, and St. Joseph Island (Drummond Island), puddingstones.

https://en.wikipedia.org/wiki/Puddingstone_(rock)

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