ENV 110 Lecture Notes - Lecture 7: Reactive Material, Specific Gravity, Calcite
8 Jun 2018
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Environmental Studies – Lecture 7
• Minerals are building blocks of the earth
• Minerals are important to humans
o industrial
o ore
o gem
• Minerals are
o Natural occurring → it’s ot atural hua ade it’s sythetic
o solid
o crystalline structure → pattern atom makes, lattice
o definite Chemical equation
o inorganic (few exceptions)
o Geologic process → freezing from a melt, biogenic created by an organism
(pearls)
• Mineral formation
o Anahedral: grow in tight location, no crystal faces
o Euhedra: grow in open cavity, good crystal faces
• What is a mineral
o It’s a solid
o Crystalline structure (atoms are patterned)
o Chemical Formula
o Naturally occurring (if not → synthetic)
o Inorganic (if not → biogenic)
o Formed geologically
• How to form a Mineral
o Solid state diffusion → water moves through rock
o Bio mineralization → organic material decays and replaced with mineral
o Precipitate from a gas
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