Unakite
is a metamorphic rock primarily composed of pistachio green epidote and pinkish orthoclase, named after a mountainous area in southern United States where it was found. Unakite is colorful and expressive in appearance and is often used in design applications such as flooring and ornament decor. Unakite is a form of orthoclase feldspar, and the orthoclase structure has the luster of moonstone, set in the particle structure of the epidote.
| Chemical Formula | KAlSi3O8 |
| Color | Green, Yellow, Pink, Gray |
| Hardness | 6Â -Â 6.5 |
| Crystal System | Monoclinic |
| Refractive Index | 1.52Â -Â 1.53 |
| SG | 2.56Â -Â 2.59 |
| Transparency | Transparent |
| Double Refraction | -.008 |
| Luster | Vitreous to rsinous |
| Cleavage | 2,1 - basal ; 2,1 - prismatic ; 3,1 - pinacoidal |
| Mineral Class | Sanidine and Silicate |
is a metamorphic rock primarily composed of pistachio green epidote and pinkish orthoclase, named after a mountainous area in southern United States where it was found. Unakite is colorful and expressive in appearance and is often used in design applications such as flooring and ornament decor. Unakite is a form of orthoclase feldspar, and the orthoclase structure has the luster of moonstone, set in the particle structure of the epidote.
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