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Marcasite reacts more readily than pyrite under conditions of high humidity. The product of this disintegration is iron(II) sulfate and sulfuric acid. The hydrous iron sulfate forms a white powder consisting of the mineral melanterite, FeSO 4 ·7H 2 O. [13] This disintegration of marcasite in mineral collections is known as "pyrite decay".
A glass of red wine. The health effects of wine are mainly determined by its active ingredient – alcohol. [1] [2] Preliminary studies found that drinking small quantities of wine (up to one standard drink per day for women and one to two drinks per day for men), particularly of red wine, may be associated with a decreased risk of cardiovascular diseases, cognitive decline, stroke, diabetes ...
And some may be under the impression that a glass of wine with dinner is actually healthy, Dr. Bubu Banini, assistant professor of medicine in digestive diseases at the Yale School of Medicine ...
Most adults in the United States drink alcohol, but there is steadily growing public concern about the health effects of moderate drinking. The latest science supports those concerns, but two ...
What is natural wine? One thing you should know is that natural wine can have a unique look and flavor, and it has something of a cult following. “Natural wine is a bit punk rock, and based on ...
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There’s real research to suggest that red wine has anti-inflammatory effects. But drinking alcohol can also contribute to and worsen high blood pressure , a key risk factor for heart disease.
At the time when the term became common in jewelry making, "marcasite" referred to all iron sulfides including pyrite, and not to the orthorhombic FeS 2 mineral marcasite which is lighter in color, brittle and chemically unstable, and thus not suitable for jewelry making. Marcasite jewelry does not actually contain the mineral marcasite. The ...