Color is one of the most wonderful effects in nature. It is an attribute of light and is not a part of the object which appears to be coloured; though all objects, by their chemical or physical composition, determine the number and variety of vibrations passed on or returned to the eye, thus fixing...
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Posts Tagged ‘ pink ’
Amber
amethyst
beryl
calcite
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Precious stones & minerals
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Pleochroism and colour of minerals
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