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Chrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue-greens. It often also occurs with colors of ...

Chrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue-greens. It often also occurs with colors of ...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Chinese Turquoise is a blue-green to light yellow-green stone, with inclusions of brown, black and rust. These colors often occur in speckled patte...

Psilomelane describes a group of hard black manganese oxides, including Hollandite and Romanechite. Psilomelane consists of hydrous manganese oxide...