1. Aluminum: Aluminum is a lightweight metal used in the construction of bike frames. It is known for its durability, corrosion resistance, and high strength-to-weight ratio. This mineral is widely available, making it an ideal choice for bike manufacturing.
2. Quartz: Quartz is a common mineral found in the Earth's crust. It is known for its hardness and durability, making it ideal for applications where toughness is required. In the context of a bike, quartz may be used as an abrasive material in brake pads or as a component in the production of glass used in bike accessories such as mirrors or reflectors.
Choose ANY two rocks/minerals. from a bike
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