- Quartz scratches glass easily
- A quartz is made of six-sided transparent crystals
- Quartz is a kind of mineral
- So, quartz is the mineral that has six-sided transparent crystals and can scratch glass easily

Hence, quartz is the mineral that has six-sided transparent crystals and can scratch glass easily
Question: Which mineral has six-sided transparent crystals that will scratch glass?
Context: - Quartz scratches glass easily 
- A quartz is made of six-sided transparent crystals 
- Quartz is a kind of mineral