Quartzite

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Aventurine
Brazil
19.54 carats
© gemselect.com

Quartzite is a coarse aggregate of tightly packed quartz grains.

Aventurine is a gem variety of quartzite.

The material is commonly dyed to produce most popular green color, resembling jade, but also all other colours. It is mostly used for carvings or cabochons.

Quartzite Gemstones by Colour

This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
 
 

Quartzite Gemstones by Size

This table shows distribution of Quartzite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:1.23 cts
Heaviest:36.47 cts
Average:16.51 cts
Total photos:17
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1.23ct to 4.75ct4.75ct to 8.28ct8.28ct to 11.80ct11.80ct to 15.33ct15.33ct to 18.85ct18.85ct to 22.37ct22.37ct to 25.90ct25.90ct to 29.42ct29.42ct to 32.95ct32.95ct to 36.47ct
General Information
A variety or type of:Quartz
Varieties/Types:
Aventurine - A variety of Quartz containing glistening fragments, usually of mica, but sometimes hematite, goethite or chlorite.
Photos of natural/un-cut material from mindat.org
Further Information
Mineral information:Quartzite information at mindat.org
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