Emerald And Ruby Locket Jewellery.
Fashion jewellery collection emerald and ruby pendnit set locket set emerald jewellery.
(By Aamir Mannan)
COLOUR, COLOUR FILTERS, AND THE DICHROSCOPE
While ruby and supphire are the red and blue varieties of the mineral corundum, there are also white, yellow, pink and green supphires. emerald and aquamarine are the rich green and pale blue varieties of beryls, but there are also white, pink, and yellow beryls, and green beryl that do not rank as emeralds, tourmaline, quartz, zircon and topaz are further well-
known examples of such polychrome minerals, and tourmaline in particular is well known for frequently appearing as parti-coloured crystals, the boundaries between the colours -(usually green and
pink) being quite sharp either across the length of the crystal or concentrically in zones. the reason of such confusing behaviour can usually be explained by the fact that there are a limited number (eight to be precise) of elements that give rise to colour in minerals.
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