It is the Gemstone celebrated for the 2nd Wedding Anniversary.
Rose quartz belongs to the macrocrystalline quartz family.
Macrocrystalline quartz, as the name suggests, has large crystals which can be distinguished by the naked eye. This type of quartz is mainly transparent to translucent, with a vitreous luster.
Among the varieties of macrocrystalline quartz, rose quartz is somewhat unusual due to its unique translucent milky color.