Geosonnet 26

A fibrous rock which lodges in the lung,
Inhaling wisps of amphibole can kill.
While chrysotile's damp mantle story's sung
Asbestos brown and blue confuse us still.
Sheared plutons from the Miocene contain
Some common hornblende altered to cause death,
What process can infect a rock so plain
To make it threaten those who draw a breath?
The saline alteration of the rock
Iron oxidation turns to ferric
Plutonic amphiboles- corrupted stock
Fibrous blue and lethal by the skerrick.
   Las Vegas gambles every breath they hold
   Lest cancer deal, it's time that they were told.

Geology 43 63

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