Minerals 2 Flashcards

Luster
Terms Definitions
mica
muscovite
apatite
Formula:
Luster: NM
Hardness: 5
Streak: White
Specific Gravity: 3.2
Properties/Cleavage: Green, brown translucent, hexagonal crystals, no cleavage, brittle.
Mineral Class: Phosphate
Uses: Fertilizers, Source of phosphate
fluorite
Formula: CaF2
Luster: NM
Hardness: 4
Streak: White
Specific Gravity: 3.0-3.3
Properties/Cleavage: Colorless, purple, green, excellent cleavage. Octahedral or cubit, transparent to transluscent.
Mineral Class: Halide
Uses: Steel and aluminum making, toothpaste.
hornblende
(ferromagnesian minerals) Monolinic, Hardness: 5-6, nonmetallic (glassy), gray-white streak, silicate, opaque
pearly luster
Luster of Mica
hardness
the resisitance to being scratched.
hardness 2.5, metallic, cubed cleavage, gray silver, dark streak, heavy
galena
sulfur
S, yellow color, dull luster, smells
magnetite
Hard (5.5-6.5), no cleavage, metallic luster, color=black/shiny, streak=black, strongly magnetic
fracture
Whenminerals break in directions other than along cleavage surfaces
2-2.5, vitreous, 1 perfect cleavage, reddish brown, white streak, flakey
muscovite
3.5-4, earthy, cubed cleavage, brown, white streak, powder fizzes
dolomite
2.5, vitreous, cubed cleavage, clear, white streak, salty
halite
feldspar
a group of aluminum silicate minerals characterized by their hardness and distinct right-angle clevage. They are the most abundant of all rock forming minerals
5.5-7, nonmetallic, 2 cleavages, salmon colored, which streak
potassium feldspar (ortheoclaste)
5.5-7, nonmetallic, 2 cleavages, white to black, which streak
plegioclase feldspar
1-6, earthy, no cleavage, deep red, brick red streak, poss. magnetic
hematite
uneven or irregular fracture
leaves a generally rough surface
graphite
A form of the element carbon in which carbon atoms form flat layers
luster
The way a mineral shines in light. May be metalic or nonmetalic
Vitreous
Glassy
Talc
http://i.quizlet.net/i/8Lq-PsS_auVnj1938d7B4w.jpg
Olivine
silver
bright
glass/nail hardness
5.5
MHS 7
quartz
Quartz, feldspars, ferromagneseum
silicates
greenockite
principle Cd ore
Waxy
(Nonmetallic) Greasy and oily
Labradorite
Chemical Formula: (Ca,Na) AlSi3O8
Chemical Class: Tectosilicates
Hardness: 6
Luster: non-metallic
Diaphaneity: opaque
Cleavage: yes
How many directions of cleavage: [email protected]
Streak:
Notes: Flashes blue colors
sphalerite (ZnS)
vitreous/metallic, granite-like, fracture, smelly
spinel
"little thorn"; fake rubies
Mineral
A naturally occurring, inorganic, solid, that has a crystal system and a definite chemical composition
physical property
observable characteristic that describes an object
Calcium
Ca +2
Coordination number of 8
Relative Number of 1.00
bornite
peacock ore, bluish, purplish, greenish, sparkly, pretty, dark grey streak
kimberlite pipes
diamonds mined from these
diaspore
a mineral, aluminum oxyhydroxide, AlO(OH), occurring in crystals, or more usually in lamellar or scaly masses: a principal constituent of bauxite and an important source of aluminum.
obsidian, limonite, flint, opal
Name a mineraloid.
Hexagonal
Calcite and quartz are (Triclinc, Monoclinc, Hexagonal, Isometric, Orthorhombic, or Tetragonal)
Silicates
Minerals that contain silicon and oxygen and usually one or more other elements. They make up about 96% of the minerals present in Earth's crust.
color
not always useful for identifying, poorest way of identification
Quartz
the only common silicate mineral consisting entirely of silicon and oxygen.
replacement
natural substitution of one mineral for another
stibnite
a soft mineral, antimony sulfide, Sb2S3, lead-gray in color with a metallic luster, occurring in crystals, often acicular, or in bladed masses: the most important ore of antimony.
sulfide
What mineral group does galena belong to?
Reclamation
Returning the land to its original state after mining.
Bowen's reaction series
the order of mineral crystallization
naturally occurring
made from natural processes not manmade
Crystalline structure are based on what?
atomic patterns
foliated
a metamorphic rock with layers cause by high pressure
Bauxite
Tan or cream in color, non-metallic, contains round nodular masses
friable
describing a rock that crumbles easily under the pressure of the fingers
Ductility
a substance's ability to be drawn or pulled into a wire
alloy
a solid mixture of two or more elements, one of which is a metal
Characteristics of a Mineral
Naturally occurring, Solid Substance, Orderly Crystalline Structure, Definite Chemical Composition, Generally considered Inorganic
carbonates
carbon, oxygen, and one or more other metals
Atoms
The smallest part of an element that has all the properties of the element.
specific gravity
the relative density of a mineral, compared to water
mineral properties
used to identify minerals based on specific characteristics.
types of surface mining
open pits, strip mines quarries
nonsilicate minerals
a mineral that does not contain silicon, or oxygen.
non-silicate mineral
a mineral that does not contain compounds of silicon and oxygen
Phosphorus Examples
Meat, Eggs, Nuts, Fish, Poultry, Whole Grains
Vitamins and Mineral
vitamin-organic, made of plant matter therefore not a mineral. mineral-inorganic
Uncut
A topaz gem is ________ in its common form
gem
a crystalline rock that can be cut and polished for jewelry
what is cleavage?
the way a mineral "breaks" into smaller bits of characteristic shape.
Natural occuring
substances made by the Earth, not by humans
What is the property of a mineral that identifies the ability of a mineral to resist scratching?
hardness
What is the property of a mineral that identifies the ability of a mineral to resist scratching?
Scientists often use the Mohs Scale to determine this property of a mineral.
Ion
an atom or group of atoms that has a positive or negative charge
Silicate Mineral
- a mineral made up of Silicon (Si) and Oxygen, (O) but can contain other elements
cubic, tetragonal, hexagonal, orthorhombic, monoclinic, triclinic
Name four of the six basic crystal shapes.
is color good for identifying minerals?
no because many minerals have same color
When does a gemstone become a gem?
When it is cut and polished it is called a gem. Gems are used for jewelry, decorating, mechanical parts, and for grinding and polishing.
/ 76
Term:
Definition:
Definition:

Leave a Comment ({[ getComments().length ]})

Comments ({[ getComments().length ]})

{[comment.username]}

{[ comment.comment ]}

View All {[ getComments().length ]} Comments
Ask a homework question - tutors are online