![This was sold to me as Amethyst but holy cow it turns blue and green in the sunlight and under fluorescent light. It also has lots of red tones In it in This was sold to me as Amethyst but holy cow it turns blue and green in the sunlight and under fluorescent light. It also has lots of red tones In it in](https://i.redd.it/1l45ql5zvpz81.jpg)
This was sold to me as Amethyst but holy cow it turns blue and green in the sunlight and under fluorescent light. It also has lots of red tones In it in
![93 Ct Large Raw Natural Garnet Stone Red Garnet Rough Stone Untreated January Birthstone Healing Crystal Good Quality Garnet - Etsy 93 Ct Large Raw Natural Garnet Stone Red Garnet Rough Stone Untreated January Birthstone Healing Crystal Good Quality Garnet - Etsy](https://i.etsystatic.com/32698246/r/il/e60181/4988258679/il_fullxfull.4988258679_b5kr.jpg)
93 Ct Large Raw Natural Garnet Stone Red Garnet Rough Stone Untreated January Birthstone Healing Crystal Good Quality Garnet - Etsy
![These will fade in direct sunlight. Probably the most common cut gems you may have are Amethyst, Citrine, Opal and Kunzite. : r/Gemstone_lovers These will fade in direct sunlight. Probably the most common cut gems you may have are Amethyst, Citrine, Opal and Kunzite. : r/Gemstone_lovers](https://preview.redd.it/these-will-fade-in-direct-sunlight-probably-the-most-common-v0-zvpe94k9w05b1.jpg?width=640&crop=smart&auto=webp&s=673f830c3b5ec8d6d07029ef3c0cb8fa06ae3e4d)
These will fade in direct sunlight. Probably the most common cut gems you may have are Amethyst, Citrine, Opal and Kunzite. : r/Gemstone_lovers
![Study on the effect of heat treatment on amethyst color and the cause of coloration | Scientific Reports Study on the effect of heat treatment on amethyst color and the cause of coloration | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-020-71786-1/MediaObjects/41598_2020_71786_Fig1_HTML.jpg)