Prasiolite is very rarely natural, it is almost always artificially heat treated or irradiated to produce the green tones from Amethyst, these colours are not stable and will often fade in the sunlight. The name derives from the Greek for 'leek stone', alluding to its green colour.
| Alternative Names | Green Amethyst |
| Colour | Green |
| Hardness | 7 |
| Crystal system | Trigonal |
| Streak | White |
| Lustre | Vitreous |
| Main Locations | Brazil, Poland, Canada |
| Chakra | Heart |
| Zodiac | Capricorn, Scorpio |
| Numerology | 3 |
| Planetary | Earth |
| Element | Earth |
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