|
INVESTIGATIONS
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Location |
Info |
ne min |
ne max |
no min |
no max |
Spectrum |
UVS |
UVL |
Reference |
Vesuvianite |
1.699 |
1.703 |
0.004 |
0.004 |
3.38 |
3.38 |
grey-blue |
Pakistan |
0.25ct |
|
|
|
|
|
|
|
Gemmologie, Zeitschrift der Deutschen
Gemmologischen Gesellschaft 2013 62/1-2, Jun, p37 |
Vesuvianite |
1.702 |
1.706 |
0.004 |
0.004 |
3.4 |
3.42 |
yellowish green |
Madagascar |
0.26ct |
|
|
|
|
|
nearly inert |
nearly inert |
Gems & Gemology 2002 Spring, p101 |
Vesuvianite |
1.702 |
1.709 |
0.007 |
0.007 |
|
|
yellowish brown |
|
pleochroism: strong olive green/dark orange |
|
|
|
|
|
|
|
The Journal of Gemmology 1983 N°8, p738-745 |
Vesuvianite |
1.705 |
1.706 |
0.001 |
0.001 |
3.35 |
3.35 |
yellowish-brown |
|
1.71ct |
|
|
|
|
|
|
|
The Journal of Gemmology 1986 Vol 20, N°1, p37 |
Vesuvianite |
1.705 |
1.708 |
|
|
3.35 |
3.35 |
milky greenish yellow |
Akhtaranda, Yakutia, Russia |
3.48ct, polycrystalline |
|
|
|
|
|
inert |
inert |
http://www.spec4gem.info/index.php 2018 |
Vesuvianite |
1.706 |
1.711 |
0.005 |
0.005 |
|
|
dark orange brown |
Laurel, Québec, Canada |
pleochroism: strong olive green/orange brown |
|
|
|
|
|
|
|
The Journal of Gemmology 1983 N°8, p738-745 |
Vesuvianite |
1.71 |
1.71 |
|
|
3.36 |
3.36 |
yellow-green |
Feather River, California, USA |
known as californite or Pulga jade; 1ea |
|
|
|
|
strong 464nm band |
inert |
inert |
Gems & Gemology 2001 spring, p74 |
Vesuvianite |
1.712 |
1.72 |
|
|
3.39 |
3.41 |
|
South of Nairobi, Kenya |
chelsea : greyish pink |
|
|
|
|
461nm |
inert |
inert |
Gems & Gemology 2002 spring, p100 |
Vesuvianite |
1.712 |
1.723 |
0.001 |
0.003 |
3.33 |
3.45 |
light yellow-green, green |
Kenya |
|
1.712 |
1.722 |
1.713 |
1.723 |
461nm line, some 529nm line, some Cr lines |
inert |
inert |
http://www.geminterest.com/ 2010 |
Vesuvianite |
1.712 |
1.717 |
|
|
|
|
light green |
Jeffrey Mine, Asbestos, Québec, Canada |
Birefringence not visible; pleochroism: distinct green/greenish yellow |
|
|
|
|
|
|
|
The Journal of Gemmology 1983 N°8, p738-745 |
Vesuvianite |
1.714 |
1.736 |
0.002 |
0.005 |
3.35 |
3.4 |
greenish brown |
Bellecombe and Montjovet, Valle d'Aosta, Italy |
|
1.714 |
1.731 |
1.717 |
1.736 |
line at 471nm |
|
|
The Journal of Gemmology 1994 24, 3, p173-177 |
Vesuvianite |
1.715 |
1.718 |
|
|
|
|
olive green |
Jeffrey Mine, Asbestos, Québec, Canada |
Birefringence not visible; pleochroism: strong green and orange |
|
|
|
|
|
|
|
The Journal of Gemmology 1983 N°8, p738-745 |
Vesuvianite |
1.717 |
1.72 |
0.003 |
0.003 |
3.39 |
3.39 |
yellow |
Mount Meru, Arusha, Tanzania |
4.38ct |
|
|
|
|
broad absorption below 450, lines at 467, 533 |
inert |
inert |
GIA Gem Database 34385 |
Vesuvianite |
1.718 |
1.72 |
0.002 |
0.002 |
3.39 |
3.39 |
orangy yellow |
Kenya |
3.17ct |
|
|
|
|
broad absorption below 420, line at 468nm |
inert |
inert |
GIA Gem Database 35543 |
Vesuvianite |
1.72 |
1.734 |
0.014 |
0.014 |
3.4 |
3.4 |
dark orangy yellow |
Mount Meru, Arusha, Tanzania |
8.23ct |
|
|
|
|
broad absorption below 470, line at 533nm |
inert |
inert |
GIA Gem Database 34386 |
Vesuvianite |
1.725 |
|
|
|
|
|
greenish brown |
Laurel, Québec, Canada |
Birefringence not visible; pleochroism: strong dark olive green/ orange |
|
|
|
|
|
|
|
The Journal of Gemmology 1983 N°8, p738-745 |
Vesuvianite |
1.73 |
1.73 |
|
|
3.35 |
3.35 |
deep purple |
Pakistan |
|
|
|
|
|
|
|
|
The Australian Gemmologist 2020 Vol 27
(3) p136 |
Vesuvianite |
|
|
|
|
3.39 |
3.39 |
very dark yellowish orange |
Mount Meru, Tanzania |
3.61ct |
|
|
|
|
lines at 468nm and 533nm, band below 450nm |
inert |
inert |
GIA Gem Database 34383 |
Vesuvianite |
|
|
|
|
3.38 |
3.38 |
dark brownish yellow |
Mount Meru, Tanzania |
4.92ct |
|
|
|
|
line at 468nm |
inert |
inert |
GIA Gem Database 34384 |
TABLES
Stone |
RI
min |
RI
max |
Biref
min |
Biref
max |
Dens
min |
Dens
max |
ne
min |
ne
max |
no
min |
no
max |
Reference |
Vesuvianite |
1.655 |
1.761 |
0.001 |
0.018 |
3.32 |
3.47 |
|
|
|
|
http://www.gemmology.be |
Vesuvianite |
1.655 |
1.761 |
0.004 |
0.018 |
3.32 |
3.47 |
1.655 |
1.750 |
1.674 |
1.761 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Vesuvianite |
1.655 |
1.761 |
0.001 |
0.018 |
3.32 |
3.47 |
1.655 |
1.750 |
1.674 |
1.761 |
http://www.geminterest.com |
Vesuvianite |
1.655 |
1.761 |
0.004 |
0.018 |
3.32 |
3.47 |
1.655 |
1.750 |
1.674 |
1.761 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Vesuvianite |
1.698 |
1.723 |
0.001 |
0.012 |
3.3 |
3.5 |
1.702 |
1.723 |
1.698 |
1.721 |
Gemmological Tables, Ulrich Henn,
2004 |
Vesuvianite |
1.7 |
1.723 |
0.002 |
0.012 |
3.3 |
3.5 |
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
Vesuvianite |
1.7 |
1.712 |
0.005 |
0.005 |
3.25 |
3.47 |
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Vesuvianite |
1.7 |
1.721 |
0.001 |
0.012 |
3.25 |
3.5 |
|
|
|
|
Gemology Tools Professional 2010 |
Vesuvianite |
1.7 |
1.753 |
0.001 |
0.01 |
3.24 |
3.48 |
|
|
|
|
Gemmo.eu 2013 |
Vesuvianite |
1.701 |
1.732 |
0.005 |
0.006 |
3.3 |
3.5 |
1.704 |
1.732 |
1.701 |
1.715 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Vesuvianite |
1.703 |
1.71 |
0.001 |
0.005 |
3.32 |
3.47 |
1.703 |
1.705 |
1.704 |
1.710 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Vesuvianite |
1.705 |
1.71 |
0.005 |
0.005 |
3.25 |
3.43 |
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
Vesuvianite |
1.706 |
1.75 |
0.003 |
0.012 |
3.32 |
3.47 |
1.706 |
1.762 |
1.702 |
1.750 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Vesuvianite |
1.711 |
1.714 |
0.003 |
0.003 |
3.32 |
3.47 |
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Vesuvianite |
1.717 |
1.721 |
0.004 |
0.004 |
3.32 |
3.47 |
|
|
|
|
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
CAUSE OF
COLOUR
Stone |
Colour |
Cause
of colour |
Reference |
Vesuvianite |
blue |
Cu |
http://minerals.caltech.edu |
Vesuvianite |
brown |
Fe²+ -> Ti4+ charge transfer |
Gems & Gemology Summer 1988 |
Vesuvianite |
green |
Fe³- in octahedral coordination, with possible
influence of Fe³+ -> Fe³+ charge transfer |
Gems & Gemology Summer 1988 |
Vesuvianite |
lavender to brownish red |
Mn³+ |
http://minerals.caltech.edu |
Vesuvianite |
yellow |
O²- -> Fe³+ charge transfer |
Gems & Gemology Summer 1988 |
MINERAL
INCLUSIONS
Inclusion |
Stone |
Reference |
magnetite |
Vesuvianite |
Gems & Gemology 2002 Spring, p101 |
LOCALITIES
STONE |
LOCALITIES |
REFERENCE |
|||
Vesuvianite |
Bellecombe |
Chatillon |
Aosta Valley |
Italy |
The Journal of Gemmology 1994, Vol 24, N°3, p175 |
Vesuvianite |
|
South of Nairobi |
|
Kenya |
Gems & Gemology 2002 spring p100 |
Vesuvianite |
Pulga deposit, North Fork, Feather river |
Butte County |
California |
USA |
Gems & Gemology 2001 spring, p74 |
CHEMICAL DATA
(%)
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
MgO |
FeO |
TiO2 |
CaO |
Na2O |
Cr2O3 |
|
Vesuvianite |
greenish brown |
Bellecombe and Montjovet, Valle d'Aosta |
Italië |
The Journal of Gemmology 1994, Vol 24, N°3, p175 |
36.95 |
16.43 |
0.06 |
2.33 |
3.3 |
1.04 |
36.14 |
0.02 |
0.04 |
Vesuvianite |
deep purple |
|
Pakistan |
The Australian gemmologist 2020 Vol27
(3) p139 |
37.09 |
19.38 |
0.06 |
2.74 |
0.26 |
0.08 |
37.9 |
|
|
Vesuvianite |
deep purple |
|
Pakistan |
The Australian gemmologist 2020 Vol27
(3) p139 |
36.81 |
19.46 |
0.05 |
2.67 |
0.33 |
0.08 |
38.12 |
|
|
Vesuvianite |
deep purple |
|
Pakistan |
The Australian gemmologist 2020 Vol27
(3) p139 |
36.8 |
19.77 |
0.04 |
2.2 |
0.47 |
0.13 |
38.11 |
|
|
Vesuvianite |
deep purple |
|
Pakistan |
The Australian gemmologist 2020 Vol27
(3) p139 |
36.82 |
19.88 |
0.04 |
2.47 |
0.42 |
0.09 |
37.8 |
|
|