Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Not Available
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
hydrogrossular Massive vein s of opaque Grossular Garnet that resembles Jade . It is white to light green in color, and may be colored in a white, green, and pink combination. Hydrogrossular is often regarded as a variety of Grossular, but it is scientifi