fredflintstone
Brilliant_Rock
- Joined
- Jul 18, 2020
- Messages
- 1,020
Here's a couple more pics of the grape garnet, you can see it blacks out in sunlight (which doesn't work for me as I'm very outdoorsy lol, others may be okay with that). It's not as bad irl as in the pics but you get the idea. Last pic is in shade, it's still purple and not black completely but far from the ideal color it can have.
Many stones blackout in direct sunlight, much more than don't. They light overwhelms them.
Grape Garnets = Umbalite Pyrope/Almadine/Spessartite (but many times Rhodolite is called Umbalite too) mix, are normally medium dark in tone, though there were some exceptional Mozambique stones that were violetish purple and were medium light in tone even above three carats. These have largely disappeared from the market. These look good in sunlight. There is also purple pryrope/almadine garnets too.
In general, lighter tone (medium light and lighter) stones but not always fair better in direct sunlight. Medium tone stones can look good too if there is enough fluoresces in them.
Purple/magenta Rhodolite looks good in sunlight as the bright magenta color shift is under sunlight while the grape purple shift is under LED light and some others.
Cut has a lot to do with a stone blacking out or not in direct sunlight. I’ve seen light toned stones blackout in sunlight as the cut was to deep. Zircons can be very prone to this, especially pinks.
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