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Name: ______________________________________________ Pd.: ________ Date: _______________________
Unit 3 – Minerals Notes
What is a mineral?
A mineral must be all of the following:
 ____________________ occurring
 __________________________ – glassy, brilliant,
greasy, oily, waxy, silky, or pearly
 ________________ – the color of the
 Inorganic ___________________ (not living)
________________ left when a mineral is rubbed
 Definite ______________________
against a hard rough surface (usually unglazed
 Definite ______________________ (what it’s
porcelain)
made of)
What is a crystal?
 A ___________________ is a solid in which the atoms
are arranged in __________________ patterns
How do minerals form? 3 ways:
 _______________________ of melted rock (magma)
 _______________________ of liquid
 _______________________ solutions
Mineral Composition
 ________________________ (Si & O)
 ________________________ (C & O)
Elements in Earth’s Crust (copy pie chart and data
from slide)
 ______________________ – is a mineral’s resistance
to being scratched - Moh’s Scale of Hardness
 Scale ranges from ____ to _____
 _____ is softest & _____ is hardest
 Factoid – What is the hardest substance on
Earth?? __________________
 ______________ _______________ – comparing
density of a mineral to the density of water
 ________________ – mineral breaks along smooth
surface
 ________________ – mineral breaks unevenly
(jagged)
 __________ __________ – some minerals give off
CO2 (carbon dioxide) when acid is added.
Mineral Usage
 ________________ – mineral resource mined for a
profit
 ________________ – mineral that is beautiful, rare,
and valuable
 ________________ – elements that have metallic
luster have…
 _____________________ – the ability of a
mineral to be hammered without breaking
Mineral Identification
 _______________ – the first property you notice –
this is usually the 1st step in identification, but the
least useful
 _______________ – the way light reflects from a
minerals surface – 2 types
 ___________________ – shiny
 _____________________ – the ability to be
pulled and stretched without breaking
 _____________________ – the ability to conduct
heat or electricity