The use of crystals when the five elements are insufficient
Gold - white light can be used - such as white ghost, titanium crystal, etc.
Wood - green light can be used - such as green ghost , jade, aventurine, etc.
Water - can use black light - such as obsidian, black tourmaline, smoky quartz, etc.
Fire - can use red light - such as garnet, red crystal, Rose pyroxene, etc.
Earth - yellow light can be used - such as citrine, amber, tiger eye stone, etc.
The use of crystals when the five elements are excessive
Gold - Black light can be used - such as obsidian, black tourmaline, smoky quartz, etc.
Wood - red light can be used - such as garnet, red crystal, rhodonite, etc.
Water - green light can be used - Such as green ghost, jade, aventurine, etc.
Fire - yellow light can be used - such as citrine, amber, tiger eye stone, etc.
Earth - white light can be used - such as white ghost , titanium crystal