This article is about the Crystal Island engine. You may be looking for the Keystone Railway engine.

Amethyst is Crystal Island's number 4 tank engine.


Amethyst first appeared when Rex first went to Crystal Island. She played a very minor role in the episode [1].

Later in the same season, Amethyst was first seen joking around with Ruby until Lapis told them to get back to work [2].

Later, Amethyst and Ruby helped Philip and BoCo by showing them what to do [3].


Amethyst is fun-loving and carefree. Loud and full of laughter, she is easily amused and very impulsive. She is also very kind and always eager to help other engines[4].


Amethyst was originally a freelance design, though she slightly resembled a GNR N2/1, Ryan's basis.

When she returned in Stories From Sodor:Future, Amethyst was given a new design based on a Furness Railway Class J1 2-4-2T. These were first built as the E1 class, an 'off the peg' Sharp, Stewart & Co. design. In 1891 seven of these engines were rebuilt as tank engines under the supervision of Locomotive Superintendent Richard Mason and reclassified J1. To suit branch line service the frames were extended to carry a coal bunker, supported by a pair of trailing radial wheels while their tenders were replaced with side tanks, that combined had a capacity of one thousand gallons. The class members were withdrawn between 1919-1924. The real Parker J1 tank engines were all scrapped so it can be assumed that Albert was as well.


Amethyst is painted lavender with dark purple lining. She has a dark purple dome, and a purple gemstone with a hexagonal facet. She also has the number 4 on her bunker in dark purple.


  • She is slightly based on Amethyst from Steven Universe.
  • Amethyst is the most used Crystal Island engine. This is because Amethyst is Jacobacranmer's favourite Steven Universe character.


Community content is available under CC-BY-SA unless otherwise noted.