A circle with an arrow pointing up and right — Mars, the male sign, and iron.
A circle above a cross — Venus, the female sign, and copper.
A circle with a dot at its centre — the Sun, and gold in alchemy.
A crescent — the Moon, and silver in alchemy.
A horned circle above a cross — Mercury, and quicksilver.
A stylised numeral four or Greek zeta crossed by a bar — Jupiter, and tin.
A crossed sickle shape — Saturn, and lead.
A circle quartered by a cross — the Earth.
A circle with a vertical stroke rising to a cross — Uranus.
A trident — Neptune.