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
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.