The Very Highest Quality Sunstone Information... |
Sunstone |
|
Colour:
Sunstone is a rich golden or reddish brown colour, with plays of red yellow and orange light, sometimes also with green, caused by the inclusion of microscopically thin plates of goethite or hematite.
Characteristics
Chemical Composition and Name | NaAlSi3O8 - Sodium Aluminium Silicate & CaAl2Si2O8 - Calcium Aluminium Silicate |
Hardness | 6 - 6.5 |
Specific Gravity | 2.62 - 2.65 |
Crystalline System | Triclinic |
Refractive Index | 1.54 - 1.55 |
Bi-refringence | 0.00 |
Optic Sign | Positive |
Optical Character | Biaxial |
...at the Lowest Possible Price |
32 - 36 Harrowside, Blackpool, Lancashire, FY4 1RJ, England. Telephone (44) - (0) 1253 - 343081 ; Fax 408058; E-mail: The URL for our main page is: https://24carat.co.uk | Chard(1964) Ltd |