Gomedhak or hessonite is a variety of grossularite garnet. It has a good luster and looks transparent. The color is brownish-orange and is often called cinnamon stone. These gems are often given step or mixed cuts. Hessonite garnets are found especially in Sri Lanka. Gomedhak represents Rahu, the ascending node of the moon. Rahu signifies worldly desires, worldly benefits, laziness, sense gratification, and ignorance. It is by nature unpredictable and creates sudden changes and influences. Rahu is similar to Shani or Saturn in its nature and influence.
People with Rahu placed in the fifth or ninth house benefit most by wearing a Hessonite as in these two houses Rahu becomes a Yog Karak planet and brings about sudden and unexpected, but welcome changes in life. Rahu however should not be the enemy of the planets that own these houses. People with Rahu in the eighth house will attract more troubles in their life by wearing this gemstone.