One common theme is friendship exploration. Since they are friends in the original show, fanfics often delve deeper into how their friendship could develop into something more. Another theme is adventure, where they go on quests together and their relationship grows during those experiences.
Sure. You can try looking on Archive of Our Own (AO3). There are many Garnet x Amethyst fanfics there. Just search for the ship name and you'll find a variety of stories with different themes and writing styles.
The garnet origin story varies. Garnets are found in different parts of the world. They form in metamorphic rocks through a complex geological process. High pressure and temperature play a role in their creation. Some garnets also form in igneous rocks. They have been used in jewelry for centuries due to their beauty and durability.
Han Li's novel,"Mortal Cultivation Legend", chapter 1260:
While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!
I don't know who the author of 'Amethyst Novel' is. There are so many novels out there, and without more context, it's difficult to determine the author.
Since I don't have more information on 'Amethyst Novel', it could be a fantasy novel where amethyst has some magical properties. Maybe the main character has an amethyst amulet that gives them special powers. It could also be a love story set in a place where amethyst is mined.
Garnet could be a great addition. Her wisdom and calm nature could provide some contrast to Steven and Amethyst's more impulsive personalities. She could also offer some valuable advice to them during their adventures.
Self - discovery is another common theme. Amethyst may learn more about her powers, her past, or her true self in the fanfic stories. This can involve her coming to terms with her flaws and learning to grow as a character.