Alexandrite or not?

[muddy sparx]

Hello guys, I would like your help in trying to determine my stone. I think I might have an Alexandrite but I am not so sure, its still rough I bought it straight from the miners. In daylight it is emerald green (bluish green) and when in incandescent light it turns to a red colour and when put in mixed lights white light and incandescent then both colours show in the stone i.e blue-green and red at the same time... I have already tried finding the specific gravity and it is 3.7.... what do you guys think? It weighs only 0.68grams (about 2 carats)

 

[Bron357]

Hi, as per your previous posting, we can’t tell you from photos what your gem is. It could be a range of gems, as there are a number of varieties that will show colour change, or even be synthetic. The best thing to do is send it to a professional laboratory and have a report done. The actual shape doesn’t look “raw” as in “direct from the ground”, it appears to be smooth rather than have natural crystal faces. Perhaps it is alluvial ie water worn?
Best to take it to an expert.

 

[muddy sparx]

Hi, as per your previous posting, we can’t tell you from photos what your gem is. It could be a range of gems, as there are a number of varieties that will show colour change, or even be synthetic. The best thing to do is send it to a professional laboratory and have a report done. The actual shape doesn’t look “raw” as in “direct from the ground”, it appears to be smooth rather than have natural crystal faces. Perhaps it is alluvial ie water worn?
Best to take it to an expert.

Thank you for your reply. I will consider taking it to a professional. And about the shape, I can guarantee its straight from the ground from Tanzania, as I am personally living there and buying straight from the source, p.s it was mined in a terrain nearby a river .... it hasn't undergone any cutting neither free shape cutting

 

[Nosean]

In daylight: same color in all directions?

If yes it could be a cc garnet - which you find in east africa

 

[muddy sparx]

In daylight: same color in all directions?

If yes it could be a cc garnet - which you find in east africa

If you a leave it in just ordinary light it mixes green with red

 

[Mrs_Strizzle]

If you a leave it in just ordinary light it mixes green with red

My Tanzanian CC garnets do that. They are really kind of a bizarre color most of the time. I certainly can't say they are even close to being my most beautiful stones, but certainly are interesting!

 

[muddy sparx]

My Tanzanian CC garnets do that. They are really kind of a bizarre color most of the time. I certainly can't say they are even close to being my most beautiful stones, but certainly are interesting!

What about the presidium tester? Where does alexandrite land. i.e how does it read because the tester has no reading for alexandrite and it comes across tourmaline section. I tested tourmaline specific gravity to my presumed alexandrite specific gravity, the tourmaline came as 3.06, and my presumed alexandrite came out 3.7 this is what really confuses me

 

[Bron357]

Does it glow an orange red colour under LW UV?
This is my Alexandrite and diamond bracelet, a lot of the diamonds are glowing blue btw!

 

[Bron357]

This is daylight colour and incandescent colour.

 

[muddy sparx]

Does it glow an orange red colour under LW UV?
This is my Alexandrite and diamond bracelet, a lot of the diamonds are glowing blue btw!

It glows a red colour under SW UV. And makes a red coating under LW UV

 

[muddy sparx]

This is daylight colour and incandescent colour.

Wow, that looks stunning but mine is bluish green in day light and red in incandescent as per the image above