Quartz, originally named Rose, is Crystal Island's number 8 pink tank engine.
Quartz's first major role in an episode was when she told the Knapford Sheds engines about her past.
She later was the first engine to welcome Star to Crystal Island.
Quartz is kind, loving, and caring. She is also quiet and shy.
Quartz is painted rose pink with magenta lining.
- She is based on Rose Quartz from Steven Universe.
- Because Rose was originally going to be named Cassandra, Quartz was originally going to be named Rose.
|Ruby • Garnet • Sapphire • Amethyst • Pearl • Peridot • Lapis • Quartz • Bismuth • Topaz • Ametrine • Star • Rutile • Rhodonite • Fluorite • Padparadscha|