skiro
1 Answer
Yvonne57
Green tourmaline is often heated to lighten color in over saturated gems, like those commonly seen in Brazil. Other tourmalines are heated to alter one of the dichroic colors.
from: http://www.moregems.com/heat_treatment_of_gems
| 13 years ago. Rating: 0 | |
Top contributors in Uncategorized category
Unanswered Questions
69VN
Answers: 0
Views: 5
Rating: 0
immortalarenaio
Answers: 0
Views: 8
Rating: 0
xocdia88saveourstatues
Answers: 0
Views: 9
Rating: 0
FC88 | Cổng cá cược thể thao, casino và game bài chuyên nghiệp
Answers: 0
Views: 9
Rating: 0
We88
Answers: 0
Views: 10
Rating: 0
SMM Panel
Answers: 0
Views: 15
Rating: 0
tap88org
Answers: 0
Views: 9
Rating: 0
qh88iico
> More questions...
Answers: 0
Views: 11
Rating: 0