Tandrews
Active Member
- Joined
- Feb 16, 2021
- Messages
- 31
- Reaction score
- 27
- Points
- 18
That is the manganese turning amethyst due to sun exposure. Pre WWI.Not sure how old this is. It's not really a clear color not sure if it's purple or some other color.
Does it take a long/years to turn them purple? How purple will they get?That is the manganese turning amethyst due to sun exposure. Pre WWI.
ROBBYBOBBY64.
It takes a while to turn purple in full sunlight. It's possible to get to quite a deep purple naturally but it requires decades out in the sun.Does it take a long/years to turn them purple? How purple will they get?
Color depends on the amount of manganese in the glass. Naturally turning amethyst takes many years.Does it take a long/years to turn them purple? How purple will they get?