Sylvia Rose
S. pasteurii: Calcium Eating Limestone-Making Bacteria
Sporosarcina pasteurii is a gram-positive bacterium with the extraordinary ability to precipitate calcite and solidify sand when exposed...
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Sylvia Rose
3 days ago5 min read
Calcium (Ca): Earth Metal of Structure & Strength
Calcium (Ca) is a vital element in life and health on Earth. A silvery white metal, calcium is a strong builder, from bone structure to...
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Sylvia Rose
Nov 155 min read
Liver of Sulfur: Alchemy, Metal & Medicine
Liver of Sulfur is a unique compound of alchemy, metallurgy and medicine. Also known as hepar sulfuris or sulfurated potash, Liver of...
6 views
Sylvia Rose
Nov 25 min read
Metal Salts: Ancient History to Modern DIY
Metal salts are compounds created from metals and acids. In history and today they enjoy uses in beauty, natural health, chemical...
9 views
Sylvia Rose
Oct 216 min read
Heavy Metals Cadmium, Mercury, Lead, Chromium & Arsenic
Toxic heavy metals cadmium, mercury, lead, chromium, and arsenic are elements known for high density and toxicity even in small amounts....
11 views
Sylvia Rose
Oct 145 min read
Carbon Steel: Origins, Composition & Uses
Carbon steel is an essential material in various industries, renowned for versatility and strength. Uncover the secrets of carbon steel:...
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Sylvia Rose
Oct 125 min read
Tungsten: Elusive Metal of Light, Art & Industry
Tungsten, also known as wolfram, is a rare and versatile metal. In nature, tungsten is found in ore form, combined with other elements....
10 views
Sylvia Rose
Sep 246 min read
Platinum (Pt): Junk Metal to Pure Treasure
Platinum (Pt) is one of the most treasured metals in the world. Known for its durability, rarity and luster, platinum is a symbol of...
8 views
Sylvia Rose
Sep 225 min read
Antimony (Stibnite, Kohl) Ancient Metal of Science & Beauty
Antimony (stibnite, Sb) is one of the elements known by the ancients, a primary source of black powder kajal or kohl. With its silvery...
24 views
Sylvia Rose
Sep 176 min read
10 Alchemical Metals - Ancient Metals of Alchemy
Ten metals are used in alchemy since its ancient emergence. They are antimony, bismuth, copper, gold, iron, lead, quicksilver (mercury),...
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Sylvia Rose
Sep 86 min read
Almadén Mines: Ancient Mercury Extraction
The Almadén Mines in central Spain have an infamous past driven by profit and greed. The deadly history of ancient Almadén revolves...
23 views
Sylvia Rose
Sep 63 min read
Ancient Traders & Buyers: Art of Testing Metals
Testing metals is a precise and varied process in the ancient world. It's a crucial skill in ensuring fair trade and preventing fraud....
18 views
Sylvia Rose
Sep 64 min read
Metal Smelting & Metallurgy in the Ancient World
Smelting, the art of extracting metal from its ore through heating and extraction, has been a part of human civilization since c. 6000...
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Sylvia Rose
Aug 214 min read
Tellurium: Bright Gold & Dark Matter
Tellurium is the Latin word for earth. A brittle, non-malleable silvery white metalloid, tellurium (Te) is a rare element having both...
6 views
Sylvia Rose
Aug 205 min read
Alchemy: Metallurgy, Myths & Magic
Alchemy has a lifelong relationship with the magic of metals and their multiple manifestations. Metal workers and later blacksmiths...
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Sylvia Rose
Aug 204 min read
Smelting Metals: Metalwork & Alchemy
In alchemy an essential piece of equipment is the hearth or forge. Smelting metal applies heat and a reducing agent to separate one or...
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Sylvia Rose
Aug 113 min read
Alchemy: Ancient Purification of Tin
Tin purification is important to various alchemical practices, and a fundamental step in many recipes and formulas. In alchemy purified...
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Sylvia Rose
Jul 234 min read
Calcination Process: Alchemy at High Heat
Calcination is a crucial process in sciences such as metallurgy and chemistry. A process of ancient alchemists, it's used allegorically...
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Sylvia Rose
Jul 186 min read
Zodiac Alchemy - Metals & Planets
Metals, planets, their properties and symbols give insight into nature and personality. The seven metals of antiquity correspond with the...
40 views
Sylvia Rose
Oct 18, 202310 min read
Alchemy: Science, Philosophy, Magic
Alchemy rises from inquiring minds . Golden Ages of alchemy appear in Greco-Roman Alexandria , medieval Islam and the Renaissance ....
146 views
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