My mother inherited the stone can change color to 5 color and I find boulder black color, please take the instructions on the stone, I inform following the experience of the stone:
Stone changes color, the opinions of Alexandrite name ... is it true ...?
This stone can change color, when afternoon blue, light blue LED lights, light candles purple or red, sometimes the color of tea
For chunks, in the opinion of the name Carbonado .. is it true ...?
I noticed this stone and treatment outcomes
1. slippery surfaces such as greasy and there was a tear
2. Many sparkle like a diamond, there are some rather large size such as diamond
3. Black thick and shiny
4. When the drying in the hot sun, heat absorbing and long lost
5, In the store room in the room to be cold and damp
Please help to further, to analyze on my stone.
Thank you for your attention and help.