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Acortinus is Lupinus lupine/wolf-bean.
Acureb is glass.
Acusto is nitre.
Alaurat is saltpetre.
Acetum Philosophorum Philosophers' Vinegar is mercurial water, which they otherwise call virgin's milk, by which they claim metals are dissolved; it is the water of the wise.
Acetum radicale Radical vinegar is vinegar distilled from its own root or matrix; it is also called solvent water.
Adamita is a certain species of tartar.
Adech is our interior and invisible man, who prefigures the patterns of all things in our mind, which he later fashions and imitates with his own hands; this exterior, visible man of ours works according to his own nature, the invisible one on invisible things, the sensible one on those things that fall under the senses, yet under the same form.
Æs Copper, or copper, is attributed to Venus by the chemists; it is a lucid metallic body, sharing in a dark redness, ignitable and fusible.
It is as if a medium between gold and silver, between the Sun and the Moon, as the chemists say. It is made from impure, non-fixed, earthy, burning, red, unclear quicksilver, and from such sulphur; it lacks fixation, purity, and weight. Bad and weak sulphur, like a father of bad complexion copulating with a generous mother, that is, with quicksilver of good substance, generates copper, a son so livid of dark redness. We have copper in two types. 1. Pure, which is found in copper and silver mines; it is such even without smelting. Implicated veinlets are sometimes seen, sometimes even whole bracts thin plates that embrace the stone. 2. That which is smelted from pyrites, that is, marcasite, and also from other species, such as from the fissile stone of Eisleben, and from some yellow and purple kinds of earth; chrysocolla and blue, just like gold.