| dc.contributor.author |
Le Thi Mai, Oanh |
|
| dc.contributor.author |
et al. |
|
| dc.date.accessioned |
2011-08-09T03:13:39Z |
|
| dc.date.available |
2011-08-09T03:13:39Z |
|
| dc.date.issued |
2011-08-09 |
|
| dc.identifier.issn |
0866-8612 |
|
| dc.identifier.uri |
http://tainguyenso.vnu.edu.vn/jspui/handle/123456789/14144 |
|
| dc.description.abstract |
Six natural tourmaline crystals with different colors were investigated by near-infrared
(NIR) absorption spectroscopy. The tourmaline crystals were obtained from Lucyen mines in
Vietnam. The NIR absorption spectra were recorded in two ranges of 4000-5000 cm-1
and 6500-
8000 cm-1
. We found, according to their NIR spectra features, these six tourmaline crystals can be
classified into four groups: G1, liddicoatite; G2, elbaite; G3, dravite; and G4, Uvite. This grouping
is consistent with the chemical composition analyses and our earlier Raman studies. |
vi |
| dc.language.iso |
en_US |
vi |
| dc.relation.ispartofseries |
207-212; |
|
| dc.subject |
Tourmaline, NIR absorption, OH vibration. |
vi |
| dc.title |
Classification of natural tourmalines using near-infrared absorption spectroscopy |
vi |
| dc.type |
Article |
vi |