Check out this strange poem from the Gregorian calendar for its rendition of the August birthstone - Sardonyx:
Wear a sardonyx or for thee,
No conjugal felicity;
The August-born without this stone,
`Tis said, must live unloved and lone
Hmm, one would think those with a birthday in August (me included) would rush out to get a Sardonyx ring (see an example pictured here - from Miriam Arcadia Dove's Shop on Etsy.com), since Sardonyx is thought to bring lasting happiness and stability to marriage and partnerships. Another belief is that it brings strength and protection, so some people place it at each corner of their house and at doors and windows, to prevent crime and misfortune.
My personal preference for the August birthstone is Peridot, which I think is more commonly thought of for this designation. I talked about Peridot in my previous blog post called 'P is for Peridot Beads', so check that out if you get a chance. I've included an image from the Etsy.com site for a lovely necklace by MonBedo; the green beads are the Peridots (the other beads in the necklace are Aquamarine and Sapphire). Peridot is just one more reason for enthusiasm about the beading life -- it's such a wonderful stone, and one that is thought to help one feel happy, worthy, and to inspire generosity. A good set of feelings and qualities for the holidays!