| Period | May 21-Jun 21 |
| Ruling Planet | Mercury |
| Ruling House | Third House |
| Nature | Positive, Masculine |
| Quality | Mutable |
| Key phrase | I think |
| Keywords | Communicate, Adaptable |
| Main Trait | Responsiveness |
| Principle | Interaction |
| Symbol | The Twins |
| Colors | Yellow, Rainbow |
| Metal | Mercury |
| Gem | Agate |
| Body Part | Arms, Shoulders, Lungs, Nerves |
| Lucky Nos | 5,9 |
| Lucky Day | Wednesday |
| Trees | Nut bearing trees |
| Flowers | Lily-of-the-valley, Lavender |
| Herbs | Marjoram,Caraway,Anise |
| Energy | Yang |
| Countries | USA, Wales, Switzerland |
| Cities | London |
| Element | Air |
| Animals | Small Birds, Parrots, Butterflies, Monkeys |
| Notable Gemini | John F. Kennedy |
| Best Compatibility | Aquarius |
| Worst Compatibility | Pisces |