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퀴즈5

Geology100

QuestionAnswer
Which of the following best defines a mineral and a rock? In a mineral the constituent atoms are bonded in a regular, repetitive, internal structure; a rock is a lithified or consolidated aggregate of different mineral grains.
Which of the following is NOT a fundamental particle found in atoms? selectron
Atoms of the same element, zinc for example, have the same number of ________. protons in the nucleus
Atoms that have an electrical charge due to a gain or loss of electrons are called ________. ions
Which of the following is correct for isotopes of the same element? The atoms have different numbers of neutrons and the same number of protons.
What mineral is the hardest known substance in nature? diamond
Which carbonate mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas? calcite
Which common mineral is composed entirely of silicon and oxygen? quartz
Which of the following minerals is a silicate? feldspar
A cubic centimeter of quartz, olivine, and gold weighs 2.5, 3.0, and 19.8 grams respectively. This indicates that ________. gold has a higher density and specific gravity than quartz and olivine
Which one of the following mineral groups exhibits a sheet-like silicate structure? micas
The ion at the center of a silicon-oxygen tetrahedron is surrounded by ________. four oxygen ions
The resistance of a mineral to abrasion is known as ________. hardness
All silicate minerals contain which two elements? silicon, oxygen
Which mineral is easily soluble in water at room temperature conditions? halite
What element is the most abundant in the Earth's crust by weight? oxygen
The strong tendency of certain minerals to break along smooth, parallel planes is known as ________. cleavage
An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus? 7
Which one of the following is NOT true for minerals? They can be a liquid, solid, or glass.
Which group of minerals are the most abundant in the Earth's crust? silicates
Which the following denotes the positively charged particles in an atom's nucleus? protons
Which of the following has the highest specific gravity? gold
Which of the following describes the light reflecting and transmission characteristics of a mineral? luster
The most unreliable (variable) diagnostic property of minerals such as quartz is ________. color
Which of the following is NOT one of the eight most common elements in the Earth's crust? carbon
Mineral deposits which have been identified and can be extracted profitably are called ________. reserves
Electron-atom-proton-neutron atom
Hardness-streak-luster-cleavage luster
Quartz-olivine-feldspar-calcite calcite
Oxygen-sulfur-aluminum-iron sulfur
All minerals exhibit cleavage. False
Rocks are aggregates of two or more minerals. True
Mineral luster is broadly classified as either being metallic or opaque. False
Electrically neutral atoms have equal numbers of electrons and protons True
Most minerals have a higher specific gravity than water. True
In the silicon-oxygen tetrahedron, there are more silicon atoms than oxygen atoms. False
More than 100 elements are currently known. True
All atoms of the same element have the same atomic number. True
A mineral can be composed entirely of one element. True
Diamond and quartz are both minerals composed of a single element. False
The micas, biotite and muscovite, both exhibit one direction of cleavage. True
Nonmetallic minerals like halite and gypsum have no industrial uses. False
Nearly 4000 minerals have been named. True
Isotopes of the same element have the same mass number. False
As the rate of cooling increases, the size of the crystals that form ________. Decreases
Bowen's reaction series predicts the sizes of the different mineral grains that grow from crystallizing magmas. True
Olivine and quartz are commonly found together in the same rock. False
One magma can produce several different igneous rocks having different mineral compositions. True
Basalt is the fine-grained equivalent of gabbro. True
Glassy igneous rocks form when magma cools too fast for mineral grains to grow. True
Created by: tjddn8888
 

 



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