Alectoria – Alectoria is a stone of darkish crystalline colour found in the intestines/gizzards of capons (castrated cockerels) that had lived seven years. Alectoria is said to be able to grant invisibility to its carrier, makes women aggregable and men eloquent, constant, and friendly. If held in one's mouth, it
Alabaster – At Antiparos in the Aegean sea, the ancients used alabaster for incense and for funeral urns. If it turned yellow and lost its whiteness, it meant sickness and famine would come. Church statues made of alabaster are sometimes found to be chipped, in many cases this damage is purposeful.
Agate – an agate stone is believed to quench thirst and turn away thunder in lightning. A black agate veined with white will protect a person from all violent dangers. Hyena-coloured agate can cause domestic unhappiness. Agate was thought to protect from the effects of poison, but agate shaped as eyes
Adamant – Adamant was a stone that once believed to be impenetrable, giving rise to the saying: "As hard as adamant." (Daniels, Encyclopaedia of Superstitions) It may be an archaic word for diamond. Because adamant was believed immune to fire, artisans would soak the mineral in goat's blood to soften it.
Animal Lore (British Isles).
In Brittany, listening and speaking for the dead was once a well-respected trade.
Known as the 'Father of Science'. One of the Seven Sages of Ancient Greece. The first recorded Western Philosopher (7th-6th century BCE). Founder of the Miletus School.