Crystal Amber

Chemical Formula	Amber is composed of complex organic material without any definitive chemical formula. Its inherent substance can also vary depending on its origination.
Color	Blue, Red, Green, Yellow, Orange, Brown
Hardness	2 - 2.5
Crystal System	Amorphous
Refractive Index	1.539 - 1.545
SG	1.0 - 1.1
Transparency	Transparent to nearly opaque
Luster	Resinous
Cleavage	None