Geology100
| Question | Answer |
|---|---|
| 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 |
Also asked, what are the characteristic that define a mineral?
Using Characteristics of Minerals to Identify Them. Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.
Secondly, which response best defines a mineral and rock? a rock has an orderly, repetitive, geometrical, internal arrangement of minerals; a mineral is a lithified or consolidated aggregate of rocks.
Then, which of the following characteristics describes silicate minerals?
-Silicate minerals contain only silicon. -Silicate minerals contain silicon and oxygen. Silicate minerals contain silicon and oxygen.
Which of the following describes the quality of light passing through and reflecting and from a mineral?
Cleavage describes the quality and amount of light reflected from a mineral surface. Cleavage is the characteristic growth pattern or shape of a mineral.
Related Question Answers
What are 5 characteristics of minerals?
Five Characteristics of a Mineral- Minerals Are Natural. You must find minerals in nature; substances concocted in laboratories don't qualify.
- Minerals Are Inorganic.
- Minerals Are Solids.
- Definite Chemical Composition.
- Crystalline Structure.
What are the 5 properties of minerals?
Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage.What are the types of minerals?
Types of minerals- Native elements. eg. Gold, Silver, Mercury, graphite, diamond.
- Oxides. eg corundum (incl. sapphire), hematite, spinel.
- Hydroxides. eg. Goethite, brucite.
- Sulfides. eg. Pyrite, galena, sphalerite.
- Sulfates. eg. Baryte, gypsum.
- Carbonates. eg. Calcite, magnesite, dolomite.
- Phosphates. eg. Apatite, monazite.
- Halides. eg.
What are the two major properties of minerals?
A mineral species is defined by two distinct properties: (1) its chemical com- position and (2) its crystal structure. Each mineral has a distinct three- dimensional array of its constituent atoms. This regular geometry affects its physical properties such as cleavage and hardness.What characteristics do all minerals share?
All minerals share five common characteristics:- Are naturally occurring – This means that the mineral is not human-made.
- Are inorganic compounds – Inorganic means that minerals are not alive and never were alive.
What types of tests are used to identify minerals?
Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction.What are minerals Short answer?
A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. Common minerals include quartz, feldspar, mica, amphibole, olivine, and calcite.How do you identify minerals?
The best place to find minerals is at mines. Mines are locations where industrially important rocks, minerals, and ores, as well as precious metals and gemstones are extracted from the earth.Which two elements are found in all silicate minerals?
Quartz falls into a group of minerals called the silicates, all of which contain the elements silicon and oxygen in some proportion.What are the three most common elements in minerals?
We all know oxygen, silicon, and aluminum are common elements in the Earth's crust. They are also the three most common but in terms of the number of minerals that contain them, we find a somewhat different accounting. Oxygen is the most numerous in the number of species, silicon is third and aluminum is seventh.What is the structure of minerals?
For a substance to be a mineral, it must be a naturally occurring, inorganic, crystalline solid that has a characteristic chemical composition and crystal structure. The atoms in minerals are arranged in regular, repeating patterns that can be used to identify that mineral.What are the six main groups of silicate minerals?
These include minerals such as quartz, feldspar, mica, amphibole, pyroxene, olivine, and a great variety of clay minerals. The building block of all of these minerals is the silica tetrahedron, a combination of four oxygen atoms and one silicon atom.What is the most common carbonate mineral?
calciteWhat is the hardest mineral prove?
diamondWhat determines the physical and chemical properties of a mineral?
Together, the chemical formula (the types and proportions of the chemical elements) and the crystal lattice (the geometry of how the atoms are arranged and bonded together) determine the physical properties of minerals. Some characteristics, such as a mineral's hardness, are more useful for mineral identification.Is gold a mineral?
What is Gold? Native gold is an element and a mineral. It is highly prized by people because of its attractive color, its rarity, resistance to tarnish, and its many special properties - some of which are unique to gold. Therefore, most gold found in nature is in the form of the native metal.Which of the following best describes mineral habit?
Which of the following best describes mineral habit? The shape a mineral grows into, given sufficient space. The color of a powdered form of a mineral produced by rubbing it across a hard surface.How many minerals have been named?
As of November 2018, the International Mineralogical Association had recognized about 5,400 minerals. About 30 to 50 new minerals are described and one or two minerals are discredited each year. The most complete listing of minerals is J.Which of the following is not a characteristics of minerals?
Question 1: Which one of the following is NOT a characteristic of minerals? They are created by natural processes. They have a definite chemical composition. They are inexhaustible.Which of the following is not required for a substance to be considered a mineral?
Though minerals vary in shape, color, luster (the way a mineral reflects light) and hardness, all minerals are a solid at a given temperature. If a substance is not in its solid state, it is not currently a mineral. For example, ice is a mineral, but liquid water is not.Which of the following common minerals is softest?
TalcWhich group of minerals are the most abundant in the earth's crust?
silicate mineralsWhich rock type is associated with a high energy environment?
Conglomerate rockWhat is a basic structural component of the most common mineral group?
Classification of MineralsThe most common "structural element" is the silicon/oxygen tetrahedron. The simplest structural class of silicates consists of those compounds (minerals) which consist of isolated single tetrahedra - the Nesosilicates.
Which of the following is said to be the most unreliable diagnostic property of minerals?
Ivy TEch Mid Term| Question | Answer |
|---|---|
| The most unreliable (variable) diagnostic property of minerals such as quartz is | color |
| Detrital sedimentary rocks are classified (named) primarily on the basis of | particle size |
| Atoms of the same element, zinc for example, have the same number of | protons in the nucleus |
Why is color an unreliable diagnostic property of minerals?
Color is the least reliable diagnostic mineral property because many minerals come in different varieties. Therefore, color may hint at the type of mineral but should be used in conjunction with other tests such as hardness and crystal form.Why is it difficult to use color to identify minerals?
Generally, color alone is not the best tool in identification because color can be highly variable. Some minerals can occur in a variety of different colors due to impurities in the chemical makeup of the mineral.What are the common group of minerals?
The five most common mineral groups in rock are the silicates, carbonates, sulfates, halides, and oxides. There are about 4000 known minerals in the Earth's crust, and about 92 % of them are silicates. The most abundant silicate is called plagioclase.Which properties are used to identify minerals select 3 choices quizlet?
Terms in this set (11)- Color.
- Luster.
- Streak.
- Cleavage / Fracture.
- Hardness.
- Density.
- Special Properties (fluorescence, chemical RXN, magnetism & taste)
How do you determine the luster of a mineral?
One simple way to classify luster is based on whether the mineral is metallic or non-metallic. Minerals that are opaque and shiny, such as pyrite, have a metallic luster. Minerals such as quartz have a non-metallic luster. Luster is how the surface of a mineral reflects light.What scale is used to determine the hardness of minerals?
Mohs hardnessWhat three tests would you perform to help you identify an unknown mineral?
Mineral Identification Tests- Luster: The quantity and quality of light reflected from the surface.
- Color: Obvious, but not always diagnostic.
- Streak: The color of the powdered mineral.
- Hardness: Hardness is the resistance of a mineral to scratching.
