MINERALS They’re not only in your breakfast cereal. What is a mineral?. A mineral is typically a compound consisting of more than one element. Ex. Halite (NaCl) There are minerals that consist of only one element. Ex. Graphite (C). Characteristics of a mineral. Naturally occurring Inorganic
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MINERALSThey’re not only in your breakfast cereal.
A crystal is composed of a structural unit that is repeated in three dimensions. This is the basic structural unit of a crystal of sodium chloride, the mineral halite.
The way a mineral’s surface reflects light
Two groups: metallic and non-metallic.
Carbonates react with dilute HCl and other acids by fizzing or bubbling (releasing CO2 gas)
Special Characteristics - Fluorescence
DO NOT TASTE MOST MINERALS!
Halite is the exception - it will taste salty
The Crystal Cave of Giants was accidentally discovered in 2000 by miners working in the silver and lead mine at Naica, Mexico. It lies almost 300 meters (900 feet) below the surface of the Earth and it contains the largest crystals known in the world
Special Characteristics -Magnetism