Aries is the first sign of the Zodiac Calendar. Aries comes in on March 21st which is exactly around the time of the Spring Equinox. This marks Spring as the beginning of the Zodiac Year. Spring is the time for fresh starts and the Aries fire sign is wonderful at beginning new ventures and projects.
Planetary alignment affects each and everyone of us so we have a tendency to take on traits of each sign. In early times people had stones for each of the zodiac signs for this very reason. Why not use that zodiac sign's energy to throw a little freshness into your life. Aries people are spontaneous, daring, energetic, and optimistic. They can also be egoistic and impatient. We all can take advantage of Aries energy until April 20th when Taurus roles in.
There are many Zodiac stones that go with any sign. It has to do with a stones energetic compatibility to the ruling planet of that zodiac sign. Some of the crystals enhance the positive traits of the sign while others tame the negative aspects. I always say if you don't like one stone then go with another. We are generally drawn to the crystal that we need.