Clinozoisite
Skardu, Skardu Area, Gilgit-Baltistan, Pakistan
0.22 carats
© Rarestone.com
Clinozoisite is colourless, yellow, greenish or pale rose-red mineral similar to Epidote, but containing little iron.
Clinozoisite Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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Clinozoisite Gemstones by Size
This table shows distribution of Clinozoisite 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:0.15 cts
Heaviest:3.69 cts
Average:0.66 cts
Total photos:26
Do you have a larger Clinozoisite? Why not upload a photo?
| General Information | |||||||||||||||||||||
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| Chemical Formula |
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| Photos of natural/un-cut material from mindat.org | |||||||||||||||||||||
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| Physical Properties of Clinozoisite | |||||||||||||||||||||
| Mohs Hardness | 6 to 7, Gemstones of the world (2001) | ||||||||||||||||||||
| Specific Gravity | 3.21 to 3.38, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Cleavage Quality | Perfect, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Optical Properties of Clinozoisite | |||||||||||||||||||||
| Refractive Index | 1.670 to 1.734, Gems, Sixth Edition (2006) RI for the alpha, beta and gamma rays is 1.670–1.715, 1.675–1.725 and 1.690–1.734 | ||||||||||||||||||||
| Optical Character | Biaxial/+, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Birefringence | 0.005 to 0.015, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Colour | |||||||||||||||||||||
| Colour (General) | Yellow to yellow-brown, colourless, greenish, pink., Gemstones of the world (2001) More from other references | ||||||||||||||||||||
| Causes of Colour | Green (tawmawite), Cr3+ in octahedral coordination, Pragmatic Spectroscopy For Gemologists (2011) | ||||||||||||||||||||
| Transparency | Transparent,Translucent, Gemstones of the world (2001) More from other references | ||||||||||||||||||||
| Lustre | Vitreous, Gemstones of the world (2001) | ||||||||||||||||||||
| Crystallography of Clinozoisite | |||||||||||||||||||||
| Crystal System | Monoclinic, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Habit | Elongated prismatic crystals, Gems, Sixth Edition (2006) | ||||||||||||||||||||
| Geological Environment | |||||||||||||||||||||
| Where found: | Typically in low- to medium-grade regionally metamorphosed igneous and sedimentary rocks, as well as in contact metamorphosed calcium-rich sediments; an alteration product of plagioclase feldspars (saussuritization)., Handbook of Mineralogy (2001) | ||||||||||||||||||||
| Further Information | |||||||||||||||||||||
| Mineral information: | Clinozoisite information at mindat.org | ||||||||||||||||||||
