Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
What is A Mineral? Chpt. 3 Section 1 pg. 66-69 Rocks are Made of Minerals Minerals must be : inorganic (made of nonliving material) naturally formed (formed in nature) it is a solid it is a crystal (has a crystalline structure) Minerals are made of elements Elements are pure substances that cannot be broken down into into simpler substances by chemical means. All minerals contain one or more of the 92 naturally occurring elements Each element is made up of only one kind of atom. Atoms are the smallest part of an element that has all the properties of that element. Minerals are also made up of atoms of one or more elements. Most minerals are made of compounds of several different elements. A compound is a substance made of two or more elements that have been chemically joined, or bonded. Halite, NaCl, - is a compound of sodium, Na, and chlorine, Cl Can you tell me ? How (S6CS10.d) does a compound differ from an element? Answer: An element is a pure substance that cannot be broken down into simpler substances by ordinary chemical means. A compound is a substance made of two or more elements that have been chemically bonded. copper, gold, and silver A mineral that is composed of only one element is called a native element. Crystals are solid, geometric forms of minerals produced by a repeating pattern of atoms or molecules. Minerals are divided into 2 groups based on chemical composition. 1. 2. Silicate Minerals- which contain silicon and oxygen (make up 90% of the earth’s crustthey combine with other elements, such as,aluminum, iron, magnesium and potassium, to make up silicate minerals ---quartz, feldspar, mica, Non-silicate Minerals- make up the rest of the earth’s crust (do not contain silicon and oxygen)-such as carbon, oxygen, fluorine, and sulfur, and they combine to make up non silicate minerals such as -----copper, calcite, gypsum, galena, corundum, Can you tell me? How S6E.b do silicate minerals differ from nonsilicate minerals? Silicate minerals contain a combination of silicon and oxygen; Nonsilicate minerals do not contain a combination of silicon and oxygen.