What is the rarest mineral?Minerals:Minerals are crystalline substances that have a specific chemical composition. Minerals are what make up rocks. Some minerals, like sodium chloride (salt), are very common, while others are extremely rare....
The platinum group metals (PGMs) are a family of six structurally and chemically similar elements that are most valued for their wide range of industrial, medical, and electronic applications. These versatile metals play a significant role in many of the products we use every day. Platinum (Pt)...
Precious metals are heavy. Just below is a chart comparing the original eight. Iridium and osmium are the densest known terrestrial substances at 22.56 and 22.59 grams per cubic centimeter. That’s twice the density of lead or about 8 times that of granite. A cube 6 inches on a side (15...
The rarest stable metal is tantalum. The rarest metal on earth is actuallyfrancium, but because this unstable element has a half life of a mere 22 minutes, it has no practical use. Is platinum better than gold? Gold: Strength and Durability. While both precious metals are strong,platinum is...
What is the rarest chemical element? What is a non-crystalline solid? What is the mass number of an element equal to? Which two subatomic particles have the same mass? What are the most nonreactive metals? What chemical element has a density of 7.1 g/cm^3? What is molecular mass? What...
What is the rarest Colour diamond? Red diamonds Of all the fancy diamonds, red are by far the rarest, and consequently most valuable. The Moussaieff Red is the most well known red diamond, 5.11 carats, this internally flawless diamond sold for USD $8 million in 2008 ($1.6 million per car...
semiprecious stonesand minerals. In fact, there are more than 5,000 different types of minerals, which researchers think is 10 times as many as anywhere else in the solar system. And, therarest mineral on the listis kyawthuite because only one natural sample has ever been found, so far....
PGMs, or platinum group metals, are a “family” of precious metals that have similar physical and chemical properties, and tend to occur together in the same mineral deposits. There are six PGMs in total, and all of them are precious metals. However, our refinery only works with two of ...
Catalytic converters are amazingly simple devices, so it is incredible to see how big an impact they have. Air-to-fuel Ratio in a Car Engine In order to reduce emissions, modern car engines carefully control the amount of fuel they burn. They try to keep the air-to-fuel ratio very clo...
What Is the Rarest Silver Certificate? Among the rarest silver certificate dollar bills are the 1928C, 1928D, and 1928E versions. Any notes that fall into these categories can fetch up to $4,500 as long as they're in very good condition.30 How Much Is a $1 Silver Certificate Wort...