1. Uraninite is the only ore mineral.

2. Evidence shows that the uraninite is of polygenesis.

3. The occurrence and mineralogy features of uraninite change along with the association types of accessory minerals in granite.

4. Uraninite in this type of deposit is crystallized by U-rich magma which is differentiated from granitic magma.

5. Described in this paper are the physicochemical characteristics, occurrence, locality and paragenesis of uraninite in the Zhuguang mass.

6. The uranium mineralization occurs in migmatite in the form of disseminated uraninite is a new type found in south China.

7. It crystallizedmainly at the magma stage, while a certain part of uraninite resultedfrom autometamorphism and all chemical metamorphism.

8. An orange-red to grayish yellow mixture of several uranium oxides, silicates, and salts occurring naturally in the oxidation and hydration of uraninite.

9. It is the first time to find scheelite and uraninite paragenetic orebody in Xiazhuang uranium ore field.

10. Particularly part of pitchblende samples with colloidal structure features have the same physical and optical features as uraninite.

11. The principal uranium mineral in the deposits of primary subtype is uraninite, but in reworked subtype are pitchblende and relict uraninite.

12. Ore minerals in the Colorado - type deposits are of uraninite and coffinite, with associated vanadium and minerals.