Abstract: Huanglong Jade is the aggregation of microcrystalline quartz mineral. Based on component and energy spectrum component analysis by scanning electron microscopy, the clay minerals that fill in space between the quartz crystals are limonites and illites. The colors of Huanglong Jade depend on the type and content of intercrystalline filling in microcrystalline quartz mineral. Red or brown colloidal limonite give it a red appearance, yellow colloidal limonite and illite make it appear light orange or yellow, and yellow or black illite give it a cyan, grey or black appearance. Golden sands, which occur commonly in Huanglong Jade, are the result of idiomorphic pyrites. If pyrites are tiny along with the bedding distribution, Huanglong Jade shows a black belt. Manganese oxide, along fracture surface dendrite distribution, constitute aquatic plants in Huanglong Jade. The tinges and transparency of the jade relate to filling materials. The higher content of the filling material, the darker and lower the transparency of the jade without filling materials, Huanglong jade appears colorless and transparent.