Mixed Dark Lepidocrocite 8mm Round - 15-16 Inch Madagascar Agate black and red

black and red

but it can also occur as orange

after its type locality

It was named from the Latin "Thule" - which was a term used by ancient Greeks and Romans to refer to the then-little-known lands to the north or present day Scandinavia

Mixed Dark Lepidocrocite 8mm Round - 15-16 Inch Madagascar Agate black and redAn iron oxide hydroxide mineral, Lepidocrocite forms when iron containing substances rust underwater. It is commonly found in the weathering of primary iron minerals and in iron ore deposits, and can be red to reddish brown. When skillfully cut and polished, those substances add a delicate accent to the otherwise clear gemstone.