水晶

1. Origins, structure, and basic meaning

• Structure: Spelling: 水晶. Reading: すいしょう. Core meaning: crystal; quartz crystal.
• Basic usage: Representative examples: 棚の上で透明な水晶が光っている / 理科室で水晶の形をスケッチした.

2. Common pitfalls and similar expressions

• Quartz crystal and generic crystal
  • Here 水晶 is a crystal of the mineral quartz. Because English “crystal” can mean crystalline material generally, preserve the more specific quartz-crystal sense where context requires it.