Siderite

Portugal, Castelo Branco District, Covilhã (Panasqueira Mine)

Identifier: 35505
Refractive Index: 1.8700
Specific Gravity: 3.98
Optical Character: Uniaxial −
Pleochroism: Greenish yellow / Yellow
Luster: Vitreous

SUN

I

F

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0

Absorption Spectrum