|
INVESTIGATIONS
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
Colour |
Locality |
Info |
nx min |
nx max |
ny min |
ny max |
nz min |
nz max |
Spectrum |
UVS |
UVL |
Reference |
Pectolite
-larimar- |
1.59 |
1.63 |
|
|
2.62 |
2.87 |
turquoise-blue, light greenish
blue |
Dominican
Republic |
hardness over 5 to 6 (because
of fibrous structure) |
|
|
|
|
|
|
|
green |
blue: moderate chalky green;
green : yellow |
Gems & Gemology 1989 winter
p216-225 |
Pectolite
|
1.592 |
1.645 |
|
|
2.91 |
2.91 |
colourless |
Mont Saint-Hilaire, Quebec,
Canada |
|
1.592 |
1.610 |
1.603 |
1.615 |
1.630 |
1.645 |
|
weak pink |
may be pink,
orange-pink |
The Journal of Gemmology 1996
Vol 25, N°1,p36 |
Pectolite
-larimar- |
1.6 |
1.6 |
|
|
2.83 |
2.83 |
light
blue |
Dominican
Republic |
1.17ct,
cabochon |
|
|
|
|
|
|
none |
yellow |
orange |
ACAM Lab
4892 |
TABLES
Stone |
RI min |
RI max |
Biref min |
Biref max |
Dens min |
Dens max |
nx min |
nx
max |
ny min |
ny max |
nz min |
nz max |
Reference |
Pectolite |
1.591 |
1.646 |
0.034 |
0.038 |
2.82 |
2.92 |
|
|
|
|
|
|
Gemmo.eu
|
Pectolite |
1.592 |
1.645 |
0.032 |
0.038 |
2.74 |
2.9 |
1.592 |
1.610 |
1.603 |
1.615 |
1.630 |
1.645 |
Gemmological Tables, Ulrich Henn, 2004 |
Pectolite |
1.595 |
1.645 |
0.032 |
0.038 |
2.74 |
2.9 |
1.592 |
1.610 |
1.603 |
1.615 |
1.630 |
1.645 |
Bestimmungstabellen für Edelsteine, Birgit
Günther, 2008
|
Pectolite |
1.595 |
1.646 |
0.033 |
0.037 |
2.74 |
2.89 |
1.595 |
1.610 |
|
|
1.632 |
1.646 |
Gemme, Dati per l'identificazione, P. De Stefano
et al, 1993
|
Pectolite |
1.595 |
1.645 |
0.036 |
0.036 |
2.74 |
2.88 |
|
|
|
|
|
|
http://www.gemmology.be
|
Pectolite |
1.595 |
1.633 |
0.038 |
0.038 |
2.74 |
2.88 |
|
|
|
|
|
|
Tabellen zur Edelstein-Bestimmung, Pschichholz
FGA, 1975
|
Pectolite |
1.595 |
1.645 |
0.036 |
0.036 |
2.74 |
2.88 |
1.595 |
1.610 |
1.605 |
1.615 |
1.632 |
1.645 |
Joel Arem, Color Encyclopedia
of Gemstones, 1987
|
Pectolite |
1.595 |
1.645 |
0.029 |
0.038 |
2.74 |
2.88 |
1.595 |
1.610 |
1.605 |
1.615 |
1.632 |
1.645 |
http://www.geminterest.com
|
Pectolite |
1.595 |
1.633 |
0.038 |
0.038 |
2.62 |
2.88 |
|
|
|
|
|
|
Gems, R Webster, 5th edition
1994
|
Pectolite |
1.595 |
1.645 |
0.032 |
0.037 |
2.62 |
2.9 |
1.595 |
1.610 |
1.605 |
1.615 |
1.632 |
1.645 |
Tables of Gemstone
Identification, Roger Dedeyne, Ivo Quintens, 2007
|
Pectolite |
1.595 |
1.645 |
0.029 |
0.038 |
2.74 |
2.9 |
|
|
|
|
|
|
Gemology Tools Professional 2010
|
Pectolite |
1.61 |
1.61 |
|
|
2.74 |
2.88 |
|
|
|
|
|
|
John Sinkakas, Gemstone and
mineral data book,1972
|
CAUSE OF COLOUR
Stone |
Colour |
Cause of
colour |
Reference |
Pectolite |
blue |
CuČ+ in octahedral
coordination |
Gems & Gemology Summer
1988 |
MINERAL INCLUSIONS
Inclusion |
Stone |
Reference |
calcite |
Pectolite |
Gems & Gemology 1989 winter p
216-225 |
chalcosite |
Pectolite |
Gems & Gemology 1989 winter p
216-225 |
copper |
Pectolite |
Gems & Gemology 1989 winter p
216-225 |
hematite |
Pectolite |
Gems & Gemology 1989 winter p
216-225 |
natrolite |
Pectolite |
Gems & Gemology 1989 winter p
216-225 |
LOCALITIES
CHEMICAL DATA (%)
Stone |
Colour |
Locality |
Reference |
SiO2 |
Al2O3 |
MnO |
CaO |
Na2O |
K2O |
CuO |
P2O5 | |
Pectolite |
light
blue |
|
Dominican
Republic |
Gems & Gemology 1989 Winter
p222 |
53.74 |
0.07 |
0.06 |
35.5 |
8.1 |
0.02 |
0.01 |
0.11 |
Pectolite |
dark blue |
|
Dominican
Republic |
Gems & Gemology 1989 Winter
p222 |
52.36 |
0.04 |
|
36.27 |
8.13 |
0.02 |
0.03 |
0.11 |