Manganosite
Manganosite | ||
---|---|---|
Specific gravity 5.364 | | |
Optical properties | Isotropic | |
Refractive index | n = 2.16–2.17 | |
References | [2][3][4][5] |
Manganosite is a rare mineral composed of
Langban and Nordmark, Sweden and at Franklin Furnace, New Jersey. It also occurs in Japan, Kyrgyzstan and Burkina Faso.[5]
It occurs in