In order to identify the given mineral, physical property test, RAMAN Spectroscopy and X-Ray Powder Diffraction was used as main methods for testing. Physical property test looked at 10 main factors: cleavage, Moh's hardness, crystal habit, magnetism, luster,  color, odor, taste, reactivity with acid, and streak. The results from the physical property test was inputted into the Dyar and Gunter Mineral Database to find the mineral that best fit the description. The location of the peaks especially at around 350 RAMAN shift indicated that the given mineral was most likely grossular. Because the graphs were slightly shifted from a pure calcitic grossular, the result showed that the given mineral was most likely a solid-solution of grossular and another garnet variation. RAMAN spectroscopy was then used to again confirm the test results and the highest peaks located at 30 2θ, 35 2θ, 54 2θ, 58 2θ, and 59 2θ. Comparing the mystery mineral RAMAN graph to the grossular RAMAN graph, it was concluded that the mystery was a solid-solution of grossular.