How minerals are identified Chapt 3
Luster
A diamonds _______ or surface appearance, is described as brilliant
cleavage
A mineral's ability to split easily along flat surfaces.
mineral
A solid inorganic substance of natural occurrence.
Density
An objects _______ is its mass divided by its volume.
crystal
An orderly, three-dimensional pattern of ions or atoms in a solid
Lead
Batteries
Moes #10
Hardest "Dimond"
Vitreours
If a minerals luster is described as ______ it means the mineral has a gassy appearance.
lava
Magma that reaches Earth's surface
density
Mass / Volume
Crystallization
Minerals form from this process of hot and cool solutions above and below Earths surface. The also form from cooling magma
magma
Molten rock beneath the earth's surface
Five main characteristics of a mineral
Naturally occurring, chemical composition, predictable crystal patterns, solids and inorganic
Moes #1
Softest "talc"
Color
The ______ of a mineral often cannot be determined from just its color.
streak
The color of a mineral in powdered form
Hematite
The mineral ______ produces a reddish streak
Silicalest and Nonsilicates
The two main families of rock forming minerals
Oxygen and Silicon
The two most abundant elements in earths crust
fracture
The way a mineral looks when it breaks apart in an irregular way
luster
The way a mineral reflects light
Ore
a rock that contains a large enough concentration of a mineral making it profitable to mine
Aluminum
automobiles, soft drink cans
native elements
made up of one element only
feldspar
most common silicate in the earths crust
gemstones
prized purely for their beauty, rarity, or durability
hardness
the resistance of a mineral to being scratched
lavare
to wash
How minerals are identified
Color, Luster, Streak, Hardness, Cleavage, Density
Fredrik Moes
Developed the Mohs hardness scale ranging from 1 -10
Porcelain
Quartz has the same Mohs value as _________
mineralogists
Scientists who study the distribution of minerals, mineral properties, and their uses.
metallic luster
Silver, gold, and copper have shiny surfaces and thus are said to have ____.
Sulfa
Tires, matches
