Figures of the Article

• Some of the "Jinmai" agate samples from Heishan, Xinjiang
• Colour characteristics of "Jinmai" agates from Heishan, Xinjiang
• Surface features of fine tendons
• Surface features of thick tendons
• Surface features of inner tendons
• Surface features of external tendons
• Surface features of pure tendons
• Surface features of "fish roe"
• Macroscopic and microscopic characteristics of cryptocrystalline structure
• Macroscopic and microscopic characteristics of cryptocrystalline fiber parallel structure
• Macroscopic and microscopic characteristics of cryptocrystalline fiber radiating structure
• Macroscopic and microscopic characteristics of group I samples
• Raman spectra of "Jinmai" agates from Heishan, Xinjiang: (a)external tendons; (b)"fish roe"
• Raman spectrum of red impurity minerals in "Jinmai" agate from Heishan, Xinjiang