Sylvia Rose
Copper(II) Sulfate: Blue Vitriol, Chalcanthite
Copper (II) sulfate CuSO4 yields a vivid color and widespread applications. Also known as blue vitriol in alchemy and chalcanthite in...
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Sylvia Rose
Sep 236 min read
Sapphire Gemstones: Colors, Myths, Origins & Gemology
Exquisite gems, sapphires are beautiful stones known for stunning colors and unique properties. Greeks wear sapphire for guidance when...
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Sylvia Rose
Sep 224 min read
Indigo: Extract Dye from Indigofera Tinctoria
Indigo, deep blue dye from the Indigofera tinctoria plant, often associated with blue denim, is one of humanity's oldest dyes. The...
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Sylvia Rose
Aug 165 min read
Lapis Lazuli: Creating Ultramarine
Lapis lazuli or "blue stone" is prized for its depth and brilliance in paint as the color ultramarine. Before the 1800s, ultramarine...
17 views
Sylvia Rose
Aug 165 min read
Lapis Lazuli & Gold: Jungian Alchemy Symbolism
Alchemy symbolism is an ancient and fluctuating system of intertwined elements compounded over more than 2000 years. A cornerstone of...
13 views
Sylvia Rose
Mar 33 min read
Chalcanthite: Crystal Blue Explosion
Chalcanthite is a brightly colored blue-green copper sulfate mineral. Its name comes from ancient Greek χαλκός (khalkós) 'copper', and...
31 views
Sylvia Rose
Mar 14 min read
Woad, the People's Blue: Ancient Pigments
Woad ( Isatis tinctoria ) is a plant yielding a blue pigment used in dyes, paint and medicine. A member of the mustard family, it's also...
49 views
Sylvia Rose
Jul 23, 20231 min read
Beautiful Music Original Art
Who doesn't love music? This is Beautiful Music, bright and lively, one of my most popular original art designs on Zazzle, combining the...
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