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polyhalite
Halite
Halite, commonly known as rock salt, is a type of mineral made up of sodium chloride (NaCl). Its chemical formula is NaCl, and it is a hexagonal crystalline structure. Halite forms when salty water evaporates, leaving behind a solid deposit of sodium chloride crystals on the beds of lakes......
1041 
Sophia
Pigment Minerals
Pigments from Mineral Sources
Pigments from mineral sources have been used for thousands of years. Ancient Egyptians used kaolin to make their bright yellow pigments, while the greeks and Romans used Egyptian blue and cinnabar, respectively. For centuries, these pigments were created by grinding ......
Chromium spinel minerals
Chrome pyrites, also known as “iron pyrite” or “fool’s gold,” is a mineral found primarily in sedimentary rocks, but also in some metamorphic and igneous rocks. It is an iron sulfide, with a bright, yellow-gold color and an opaque metallic luster.
Chrome pyrites is composed of two minerals: ......
Medical Mineral Magnets
Medicines and Minerals
Medicines have been used to treat illness and ailments for centuries, and minerals have been known to provide essential nutrients to the body and ensure its proper functioning. Both medicine and minerals are essential to our health, and it is important to understand how th......
Chrysocolla
Agate is a beautiful stone with a wide range of colors and patterns that make it a favorite among collectors and gem enthusiasts. Also known as “porcelain stone”, agate is a cryptocrystalline form of quartz, the most abundant mineral on earth. While agate is most common in gray to gray-blue hues......
black manganese ore
Hematite is a very common mineral, composed of iron oxide, and is an important ore of iron. Its scientific name is ferric oxide and is also sometimes known as black iron ore. Throughout its history, hematite has been used for a number of purposes. Historically, it has been used to make red ochre p......
crystal form of diamond
Introduction
Diamond is one of the most valuable and sought after materials in the world. It is also one of nature’s most unique and fascinating materials, with a unique crystalline structure that makes it incredibly hard and resistant to damage. This uniqueness is what has made diamond a prized ......
Niobium and germanium
The Element Niobium
Niobium is a shiny silvery-white metal that was first identified in 1801 by Charles Hatchett. Its Latin name is niobium, a nod to greek mythology that pays homage to Niobe, the daughter of Tantalus, fron the specific circumstances surrounding its first discovery. Niobium is bo......
magnetic
1. Introduction
Magnetism is an amazing physical phenomenon associated with certain materials that respond to external magnetism. It’s one of the most important phenomena in modern society, playing a major role in the development of technology, economics, and other areas. In this article, we wi......
Sulfur salt minerals
内容
Sulfate Minerals
Sulfate minerals are those minerals containing an anion consisting of two oxygens and a sulfur atom, SO4-2. Important sulfate minerals include anhydrite (calcium sulfate), alunite (potassium aluminum sulfate), barite (barium sulfate), anglesite (lead sulfate), celestite (stro......
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