The leading distinction in magnets is the sex, male and female, and the next great difference in them is the colour. Those of Magnesia, bordering on Macedonia, are of a reddish black; those of Breotia are more red than black; and the kind that is found in Troas is black, of the female sex, and consequently destitute of attractive power.
Pliny the Elder...shellfish are the prime cause of the decline of morals and the adaptation of an extravagant lifestyle. Indeed of the whole realm of Nature the sea is in many ways the most harmful to the stomach, with its great variety of dishes and tasty fish.
Pliny the ElderHow many things... are looked upon as quite impossible until they have been actually effected?
Pliny the ElderMade up of the glories of the most precious gems, to describe them is a matter of inexpressible difficulty. For there is amongst them the gentler fire of the ruby, there is the rich purple of the amethyst, there is the sea-green of the emerald, and all shining together in an indescribable union. Others, by an excessive heightening of their hues equal all the colours of the painter, others the flame of burning brimstone, or of a fire quickened by oil.
Pliny the Elder