Affinity with the signs: Aquarius, Aries, Gemini, Taurus, Crab, Leo, Virgo, Pisces, Sagittarius, Libra and Scorpio.
It increases your state of attention and helps to clarify and reinforce your creativity. Turquoise acts on communication and the ease of speaking. Due to its intense color it helps to make your inspiration come alive.
Approximate dimensions: Between 15mm to 20mm
The affinity of the stones with the signs just means that there is potentially more reverberation between them. But it shouldn't be the reason to look for another stone if it looks right to you, regardless of your sign.