Garnet is a stone of passion, stength, security and vitality. Garnet is a powerful activator of the Root Chakra, great for those who are ungrounded or lack energy and motivation. Many people use Rose Quartz for love but Garnet is truly a better option. Rose Quartz is a stone of universal love (like Mother Theresa) whereas Garnet stokes the fires of passionate love. 
Resonates with Root Chakra.