|
|
|
Syngony
|
Hexagonal
|
|
Symmetry Class
|
P3221
|
|
Lattice Constants, Angstroms
|
a=4.9138 c=5.4052
|
|
|
|
|
Refractive Index at n0.436
|
no
|
1.5538
|
|
ne
|
1.5632
|
|
Thermal Coefficient of Refractive Index at l=340 nm,îÑ-1
for +20¸+100îÑ
|
no
|
-5.01• 10-6
|
|
ne
|
-3.93• 10-6
|
|
Transmission Range, microns (thickness 10ìì)
|
0.15¸3.3
|
|
Transmittance ti(l) vs. wavelength l
|
Quartz Crystalline
|
|
 |
|
|
|
Refractive Index n vs.
wavelength l
SiO2 ( Quartz Crystalline )
|
|
l,ìêì
|
n(l)
|
|
no
|
ne
|
|
0.2001
|
1.6493
|
1.6623
|
|
0.2503
|
1.6003
|
1.6114
|
|
0.3034
|
1.5770
|
1.5872
|
|
0.4047
|
1.5572
|
1.5667
|
|
0.5086
|
1.5482
|
1.5575
|
|
0.6438
|
1.5423
|
1.5513
|
|
1.0000
|
1.5350
|
1.5438
|
|
1.2000
|
1.5323
|
1.5410
|
|
1.4000
|
1.5297
|
1.5383
|
|
1.6000
|
1.5270
|
1.5355
|
|
1.8000
|
1.5241
|
1.5324
|
|
2.5000
|
1.5116
|
1.5195
|
|
3.0000
|
1.4996
|
1.5070
|
|
|
|
|
|
Thermal Linear Expansion at, îÑ-1 for 0¸+20îÑ
|
13.24• 10-6
|
|
Thermal Conductivity, W/(m •îÑ) at 25 îÑ
|
no
|
6.82
|
|
ne
|
11.43
|
|
Specific Heat Capacity, J/(kg •îÑ) for 25 îÑ
|
741
|
|
Melting Point, îÑ
|
1470
|
|
|
|
|
Density, g/cm3 at 20 îÑ
|
2.649
|
|
Mohs Hardness
|
7
|
|
Vickers Microhardness , Pa
|
981• 107
|
|
Young Modulus (Å), Pa
|
no
|
8.7• 1010
|
|
ne
|
10.5• 1010
|
|
|
|
|
Solubility
|
|
in water at 20 îÑ
g/100cm3
|
|
insoluble
|
|
"Opto-Technological Laboratory" produces mirrors, lenses, windows, prisms, wedges and others optical components according to customers’ specifications and drawings out of crystals quartz crystalline . |
