Formula:
Mg4Al6[(O,OH)2/BO4(SiO4)4]
Mineral class: silicates Crystal system: rhombic Mohs scale: 6.5 - 7 Density (g/cm3): 3.23 - 3.35 Refractive index: 1.660 - 1.699 Cleavage: good Colors: yellowish, orange-brown, green, green-brown, blue Luster: vitreous Fluorescence: - Pleochroism: strong: green - yellow - brown Largest Kornerupine: 23 cm (Fiskenässet-Region / Nuuk / Greenland) Deposits: Myanmar, Sri Lanka, Greenland, Canada, Madagascar, South Africa Discovery: 1884 1st Description: 1892 Name: in honor of the Danish geologist Andreas Nikolaus Kornerup (1857 - 1881) |
Kornerupine Mineral
Size: 1.7 x 1.2 x 0.5 cm Origin: Weligama / Matara / Southern Prov. / Sri Lanka Photo by kind permission of © www.lucianabarbosa.com |
Kornerupine
Size: 0.51 x 0.33 cm Weight: 0.48 ct Origin: Afghanistan Photo by kind permission of © www.bkkgemstones.com |
Kornerupine
Weight: 2.46 ct Size: 1.1 x 0.86 cm Origin: Sri Lanka Photo by kind permission of © www.gemfrance.com |
Kornerupine
Size: 1.45 x 1.44 x 0.94 cm Weight: 12.20 ct Origin: Sri Lanka Photo by kind permission of © www.palagems.com |
Kornerupine
Weight: 1.27 ct Size: 0.79 x 0.64 x 0.4 cm Origin: Brazil Photo by kind permission of © www.gemfrance.com |
Kornerupine
Size: 0.60 x 0.59 x 0.36 cm Weight: 0.77 ct Origin: Wellawaya / Sri Lanka Photo by kind permission of © www.wildfishgems.com |
Kornerupine
Weight: 0.51 ct Size: 0.70 x 0.32 cm Origin: Madagascar Photo by kind permission of © www.irocks.com |
Kornerupine Mineral
Origin: Li Chaung Gyi Mine / Ohngaing / Mogok / Myanmar Photo by kind permission of © www.crystal-treasure.com |
Kornerupine
Size: 0.57 x 0.47 x 0.25 cm Weight: 0.51 ct Origin: Li Chaung Gyi Mine / Ohngaing / Mogok / Myanmar Photo by kind permission of © www.crystal-treasure.com |
Kornerupine Mineral
Size: 0.44 x 0.29 x 0.29 cm Origin: Tanzania Photo by kind permission of © Darlene Cobler |
Kornerupine
Size: 0.27 cm Weight: 0.07 ct Origin: Tanzania Photo by kind permission of www.thegemtrader.com |
Kornerupine
Size: 0.93 x 0.85 cm Weight: 3.33 ct Origin: Sri Lanka Photo by kind permission of © www.rarestone.com |
Kornerupine Cat's Eye
Weight: 1.50 ct Origin: Ella / Sri Lanka Photo by kind permission of www.wildfishgems.com |
Kornerupine Cat's Eye
Weight: 5.07 ct Origin: Sri Lanka Photo by kind permission of www.multicolour.com |
Kornerupine Cat's Eye
Weight: 3.12 ct Origin: Sri Lanka Photo by kind permission of © www.online-edelstein.de |
Kornerupine Cat's Eye
Size: 0.64 cm Weight: 1.20 ct Origin: India Photo by kind permission of www.minclassics.com |
Kornerupine Cat's Eye
Weight: 1.34 ct Origin: Orissa / India Photo by kind permission of www.irocks.com |
Kornerupine Cat's Eye
Size: 0.7 cm Weight: 1.51 ct Origin: Sri Lanka Photo by kind permission of www.steveperrygems.com |