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Stichtite is a mineral, a carbonate of chromium and magnesium. Its color ranges from pink through lilac to a rich purple color. Discovered in 1910 ...

Stichtite is a mineral, a carbonate of chromium and magnesium. Its color ranges from pink through lilac to a rich purple color. Discovered in 1910 ...

Mother of Pearl, also known as Nacre, is an iridescent composite of organic and inorganic material most known for being the coating of pearls. It i...

Mother of Pearl, also known as Nacre, is an iridescent composite of organic and inorganic material most known for being the coating of pearls. It i...

Mother of Pearl, also known as Nacre, is an iridescent composite of organic and inorganic material most known for being the coating of pearls. It i...