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This question already has an answer here:

World is full of green, because of plants. Does it really signifies existence of Copper, in particularly by leafs.

I well understood that Prolific Tamarind Colored Salt has base element Copper. More usage of Tamarind makes us dump as per Siddhas in India.

Would like to know specifically that green color means existence of Copper. Is that completely true. Or by Alkali elements it might be faulty in some situation.

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marked as duplicate by Klaus-Dieter Warzecha, getafix, Todd Minehardt, Wildcat, hBy2Py Jan 24 '17 at 14:40

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    $\begingroup$ en.wikipedia.org/wiki/Chlorophyll $\endgroup$ – ringo Jan 24 '17 at 6:57
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    $\begingroup$ Azurite is a copper mineral and it is blue. Metallic copper is reddish. Cuprite is a copper mineral and it is red. So there are a lot of copper minerals that are not green. $\endgroup$ – MaxW Jan 24 '17 at 9:15
  • $\begingroup$ No, there are plenty of compounds, even metal complexes, which are green without containing copper $\endgroup$ – Greg Mar 13 '17 at 23:10
  • $\begingroup$ Die or pigment gets color by right agent which is been in use. Synthesizer gets [or] reveals color by/on physical principles which is not bounds to Chemical Bond, maybe its just a relevant to it. $\endgroup$ – Dev Anand Sadasivam Mar 17 '17 at 19:38
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The green in plants arises not from copper but from chlorophyll. It is true that many oxidized species of copper are green, but in plants, it is clorophyl as described for example in this Wikipedia page:

"Chlorophyll (also chlorophyl) is any of several closely related green pigments found in cyanobacteria and the chloroplasts of algae and plants. Its name is derived from the Greek words χλωρός, chloros ("green") and φύλλον, phyllon ("leaf"). Chlorophyll is essential in photosynthesis, allowing plants to absorb energy from light. Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum, which it reflects, producing the green color of chlorophyll-containing tissues."

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  • $\begingroup$ Does green pigment is green because of Copper? $\endgroup$ – Dev Anand Sadasivam Jan 24 '17 at 7:03
  • $\begingroup$ No, there is actually no copper in chlorophyll, or enough copper in plants to produce the strong green we see. Chlorophyll is purely organic, with a Mg bound to it. $\endgroup$ – airhuff Jan 24 '17 at 7:06
  • $\begingroup$ Oh! ok! By mutation or by laws is there intervention that color formation gets using Copper, because it is pigment. $\endgroup$ – Dev Anand Sadasivam Jan 24 '17 at 7:07
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    $\begingroup$ @WYSIWYG, I don't want it on my veggies, but good point ;) $\endgroup$ – airhuff Jan 24 '17 at 11:03
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    $\begingroup$ @paracresol, no that one was lost on me. My "that is correct" comment referred to the immediately previous statement "But not every green is by Mg, if I am right"...I agree that not all green is caused by Mg ;) $\endgroup$ – airhuff Jan 24 '17 at 19:29

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