colcothar

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Alchemy: CROCUS of IRON (Crocus) Royalty Free Stock Photo
Alchemy: CROCUS of IRON (Crocus) Royalty Free Stock Photo
Alchemy: CROCUS / SAFFRON Royalty Free Stock Photo
Iron oxide molecule icon Royalty Free Stock Photo
Iron oxide molecule icon Royalty Free Stock Photo
   
   
Alchemy: SAFFRON of COPPER (Crocus)
Mummifiers thanatopraxy infrared Royalty Free Stock Photo
Delicate purple crocus flowers Royalty Free Stock Photo
   
   
   
   
   
Alchemy Alphabet: SAFFRON of COPPER (Crocus veneris, Aes ustum, Venus calciné), copper calcined to red powder (Colcothar, Calcanthum). Cupric oxide, Cuprous oxide: Chemical formula=[Cu₂O].


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