Please enable JavaScript to view this page properly.
Introduction
Classification
Repository
Library
English |
Български
Where am I? >
Home
>
Repository
>
Orthoclase
Gallery view selector
Colour selector
Orthoclase — specimen 0352, photo © NMNHS
Orthoclase
—
specimen 0352
Origin
East Africa
Tanzania
Data
Weight:
0.94 ct;
size:
6.44 | 6.44 | 4.70 mm;
shape:
octagon;
colour:
light yellow; very slightly brownish;
clarity:
eye clean;
cut:
excellent;
treatment:
none.
Notes
Very clean specimen; design ‘Eight’ [pavilion angle changed to 44.00] by Glenn & Martha Vargas, excellent cut by Tan Pen.
Other specimens
More information from ‘Classification’
Orthoclase
A common feldspar of
granites
, granite
pegmatites
, and
syenites
; in cavities in
basalts
; in
metamorphic rocks
(
Anthony et al., 2001—2005
).
Gemmology — gemstones
Front page
|
Introduction
|
Classification
|
Repository
|
Library
© 2024
National Museum of Natural History, Sofia
(NMNHS)
Use of this website assumes acceptance of our
terms of use
.
The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.