How minerals are identified Chapt 3

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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


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