The Very Highest Quality Sard Information. . . |
Sard |
Photo to Follow
|
Technical Details
Chemical Composition and Name | SiO2 - Silicon Dioxide |
Hardness | 7 |
Specific Gravity | 2.65 - 2.66 |
Refractive Index (R.I.) | 1.543 - 1.552 to 1.545 - 1.554 |
Bi-refringence | 0.009 |
Optic Sign | Positive |
Optical Character | Uniaxial |
. . . at the Lowest Possible Price |
32 - 36 Harrowside, Blackpool, Lancashire, FY4 1RJ, England. Telephone (44) - (0) 1253 - 343081 ; Fax 408058; E-mail: enquiries@24carat. co. uk The URL for our main page is: http://www. 24carat. co. uk/index.html | Web Design by Snoop |