| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | Transparent bright blue Cu-bearing tourmalines from Paraiba, Brazil |
|---|
| Journal | Mineralogical Magazine | ISSN | 0026-461X |
|---|
| Authors | Henn, Ulrich | Author |
|---|
| Bank, Hermann | Author |
| Bank, Francisco Hermann | Author |
| Platen, Hilmar Von | Author |
| Hofmeister, Wolfgang | Author |
| Year | 1990 (December) | Volume | 54 |
|---|
| Issue | 377 |
|---|
| Publisher | Mineralogical Society |
|---|
| Download URL | https://rruff.info/doclib/MinMag/Volume_54/54-377-553.pdf+ |
|---|
| DOI | doi:10.1180/minmag.1990.054.377.04Search in ResearchGate |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 1659 | Long-form Identifier | mindat:1:5:1659:3 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | Henn, Ulrich, Bank, Hermann, Bank, Francisco Hermann, Platen, Hilmar Von, Hofmeister, Wolfgang (1990) Transparent bright blue Cu-bearing tourmalines from Paraiba, Brazil. Mineralogical Magazine, 54 (377) 553-557 doi:10.1180/minmag.1990.054.377.04 |
|---|
| Plain Text | Henn, Ulrich, Bank, Hermann, Bank, Francisco Hermann, Platen, Hilmar Von, Hofmeister, Wolfgang (1990) Transparent bright blue Cu-bearing tourmalines from Paraiba, Brazil. Mineralogical Magazine, 54 (377) 553-557 doi:10.1180/minmag.1990.054.377.04 |
|---|
| In | (1990, December) Mineralogical Magazine Vol. 54 (377) Mineralogical Society |
|---|
| Abstract/Notes | AbstractPhysical, crystal-chemical and absorption spectroscopical properties of blue tourmalines from a new occurrence in the State of Paraiba, Brazil, are described. Refractive indices, birefringence and specific gravity have been determined as ne = 1.615–1.620, no = 1.632–1.640, Δn=−0.017 to −0.020 and 3.04–3.07g/cm3. Microprobe analyses proved the samples to be elbaites, which are relatively Mn-rich and contain 2.1 wt. % CuO and 0.5 wt. % Bi2O3. Lattice constants are ao = 15.854(4) and co = 7.102(1) Å. The blue colour is due to pleochroic absorption bands of Cu2+ and Mn3+ with maxima at 700 and 520 nm respectively. |
|---|
These are possibly similar items as determined by title/reference text matching only.
