|
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 |
Microcline |
1.516 |
1.529 |
0.007 |
0.01 |
2.56 |
2.6 |
blue to bluish green (amazonite) |
Penoles pegmatite, Chihuahua, Mexico |
|
1.516 |
1.520 |
1.518 |
1.525 |
1.525 |
1.529 |
|
inert |
yellow-green |
Gems & Gemology 2007 Summer,
p163-164 |
Microcline |
1.518 |
1.525 |
0.007 |
0.007 |
2.57 |
2.57 |
bluish green (amazonite) |
Koppio district, South Australia |
|
1.518 |
1.518 |
1.522 |
1.522 |
1.525 |
1.525 |
|
inert |
inert |
The Australian Gemmologist 1985 August, p 404-408 |
Microcline |
1.519 |
1.525 |
0.006 |
0.006 |
2.55 |
2.55 |
white and brown |
Brazil |
opaque, cabochons 12.29ct and 12.87ct |
|
|
|
|
|
|
|
|
|
https://www.dgemg.com 2018 newsletter4 |
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 |
Microcline |
1.513 |
1.54 |
0.005 |
0.012 |
2.53 |
2.64 |
|
|
|
|
|
|
Gemmo.eu 2013 |
Microcline |
1.514 |
1.539 |
0.008 |
0.008 |
2.54 |
2.63 |
1.514 |
1.529 |
|
|
1.521 |
1.539 |
Gemme, Dati per l'identificazione, P. De
Stefano et al, 1993 |
Microcline |
1.514 |
1.539 |
0.004 |
0.007 |
2.54 |
2.63 |
|
|
|
|
|
|
http://www.gemmology.be |
Microcline |
1.514 |
1.539 |
0.005 |
0.01 |
2.5 |
2.7 |
1.514 |
1.529 |
1.518 |
1.533 |
1.521 |
1.539 |
http://www.geminterest.com |
Microcline |
1.514 |
1.539 |
0.007 |
0.01 |
2.54 |
2.63 |
1.514 |
1.529 |
1.518 |
1.533 |
1.521 |
1.539 |
Joel Arem, Color Encyclopedia of Gemstones,
1987 |
Microcline |
1.514 |
1.539 |
0.007 |
0.01 |
2.54 |
2.63 |
1.514 |
1.529 |
|
|
1.521 |
1.539 |
Tables of Gemstone Identification, Roger Dedeyne,
Ivo Quintens, 2007 |
Microcline |
1.518 |
1.534 |
0.008 |
0.008 |
2.53 |
2.58 |
|
|
|
|
|
|
Gemology Tools Professional 2010 |
Microcline |
1.522 |
1.53 |
0.008 |
0.008 |
2.55 |
2.57 |
|
|
|
|
|
|
Bestimmungstabellen für Edelsteine,
Birgit Günther, 1981 |
Microcline |
1.522 |
1.53 |
0.008 |
0.008 |
2.54 |
2.58 |
|
|
|
|
|
|
Tabellen zur Edelstein-Bestimmung,
Pschichholz FGA, 1975 |
Microcline |
1.522 |
1.53 |
0.008 |
0.008 |
256 |
2.58 |
|
|
|
|
|
|
Gems, R Webster, 5th edition 1994 |
Microcline |
|
|
0.008 |
0.008 |
2.54 |
2.55 |
|
|
|
|
|
|
John Sinkakas, Gemstone and mineral data
book,1972 |
CAUSE OF
COLOUR
Stone |
Colour |
Cause of
colour |
Reference |
amazonite-Microcline |
green |
colour center involving Pb³+ and structural water (Pb²+ substituting two
K+ atoms, irradated to Pb³+;only possible when H2O is bounded to the
structure) |
Gems & Gemology Summer 1988 |
Microcline |
brown |
inclusions of hematite and goethite |
https://www.dgemg.com/images/PDF-Newsletter/Amazonit-Newsletter4-2018.pdf |
MINERAL
INCLUSIONS
LOCALITIES
amazonite-Microcline |
|
|
|
Australia |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
Minas Gerais |
Brazil |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
Ontario |
Canada |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
Québec |
Canada |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
|
Madagascar |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
Departementa Ambositra |
Amoron'i Mania region |
Fianarantsoa Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
amazonite-Microcline |
Kandreho area, Maevatanana District |
Betsiboka Region |
Mahajanga (Majunga) Province |
Madagascar |
Gemmologie, Dez 1999, p196 |
amazonite-Microcline |
Mahabo Commune, Betroka District |
Anosy (Fort Dauphin) Region |
Tuléar (Toliara) Province |
Madagascar |
Gemmologie, Dez 1999,p196 |
amazonite-Microcline |
Dierra de Penoles |
Allende |
Chihuahua |
Mexico |
Gems & Gemology summer 2007 p163-164 |
amazonite-Microcline |
|
|
Kola |
Russia |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
Ural Region |
Russia |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
|
South-Africa |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
|
|
|
Tanzania |
Gemmologie 4 Dec 2001 p182 |
amazonite-Microcline |
Pike's Peak |
El Paso County |
Colorado |
USA |
American Mineralogist, Vol. 85, pp.
1275-1286, 2000. |
amazonite-Microcline |
|
|
Virginia |
USA |
Gemmologie 4 Dec 2001 p182 |
CHEMICAL DATA
(%)