硅铝质

Traditional form:

硅鋁質

Pinyin (reading):

guīlüzhì

Definitions:

• sial rock (containing silicon and aluminium, so comparatively light, making continental plates)

Characters:

• 硅 - silicon
• 铝 - aluminum
• 质 - essence, nature; material, substance

Traditional characters:

• 硅 - silicon
• 鋁 - aluminum
• 質 - essence, nature; material, substance