The Very Highest Quality Quartz Information. . .

QuartzBack to A - Z IndexChard 24 Carat Home Page

Bi-coloured Amethyst Citrine
Bi-coloured Amethyst Citrine

Quartz is a crystalline rock or mineral composed of silicon dioxide.
It is actually very common, and occurs in many varieties, a number of which are gemstones, some of which are very beautiful and very rare.

Different Groups of Quartz Gemstones
There are a number of different groups of quartz gems, differentiated by their exact composition and crystalline structure. These groups are:-

Gem Varieties of Quartz
The following are the main gem varieties of quartz. For details of each type, please take a look at their individual pages, where available. Further information about the other varieties will follow when time permits.

Technical Details
Chemical Composition and NameSiO2 - Silicon Dioxide
Specific Gravity2.65 - 2.66
Refractive Index (R.I.)1.543 - 1.552 to 1.545 - 1.554
Optic SignPositive
Optical CharacterUniaxial

. . . 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