luster of minerals definition
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- Mineral Luster. Luster is a description of the way a mineral surface looks when light reflects off of the surface. Luster has two categories, metallic and nonmetallic.
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- View Full Document. vitreous luster ANS: C 16. Cleavage in minerals refers to ____________. a. a tendency to break in an irregular pattern b. a tendency to break along planes of weakness c. the sharpness of edges between crystal faces d. the development of distinct crystal faces ANS: B 17.
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Minerals that look like plastic have what kind of luster? Luster (or Lustre) is a description of the way light interacts with the surface of a crystal,rock or mineral-For example a metallic lustre or silky lustre.2 people found this useful. Edit.uster (or Lustre) is a description of the way light interacts with the surface of a crystal,rock or mineral-For example a metallic lustre or silky lustre. 2 people found this useful.
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Examples of Different Mineral Lusters Diamond shows the definitive adamantine luster (extremely shiny, even fiery), but only on a clean crystal face or fracture surface.This specimen has a luster better described as greasy.iamond shows the definitive adamantine luster (extremely shiny, even fiery), but only on a clean crystal face or fracture surface.
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- 2) STREAK. This is the colour of the line drawn when a mineral is rubbed across a piece of unglazed tile. Often the line is the same or similar colour of the specimen.This test is useful because in a few cases, similar looking minerals have different streaks - so this test is a definitive identifier. Luster is what the surface looks like when the light reflects off of the mineral. Some words to describe luster are: 1  DULL / EARTHY - very dull, mainly minerals that are porous eg kaolinite, orthoclase.  WAXY - like the surface of a candle, like wax paper eg opal, chalcedony.
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Lustre (mineralogy) Schiller, from German for twinkle, is the metallic iridescence originating from below the surface of a stone, that occurs when light is reflected between layers of minerals. It is seen in moonstone and labradorite and is very similar to adularescence and aventurescence.imilarly, the term vitreous (derived from the Latin for glass, vitrum) refers to a glassy lustre. A list of these terms is given below. Lustre varies over a wide continuum, and so there are no rigid boundaries between the different types of lustre.
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MINERAL PROPERTIES: LUSTER Every mineral has a characteristic luster, but some minerals may have a different luster on different specimens. There is no scientific method to determine luster. Often, determining the luster of a particular specimen is personal; to some it may appear as one type of luster, and to others as a different type.
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Reading: Physical Characteristics of Minerals Figure 4. (a) Diamond has an adamantine luster. (b) Quartz is not sparkly and has a vitreous, or glassy, luster. (c) Sulfur reflects less light than quartz, so it has a resinous luster.
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What does luster mean pertaining to a mineral in science? This is called the luster of the mineral.   The luster of a mineral is the way its surface reflects light. Most  terms used to describe luster are self-explanatory: metal…lic,  earthy, waxy, greasy, vitreous (glassy), adamantine (or brilliant,  as in a faceted diamond). 6 people found this useful. Jherlys29.
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Minerals that look like plastic have what kind of luster? Split and merge into it. Answered by The Community. Making the world better, one answer at a time. To determine what type of luster a mineral would have that looked like plastic you would first need to know what type of plastic it replicated.A dull plastic such as that of a milk jug would be considered a resinous luster. If the plastic was very shiny or polished looking it would be a vitreous luster.plit and merge into it. Answered by The Community. Making the world better, one answer at a time. To determine what type of luster a mineral would have that looked like plastic you would first need to know what type of plastic it replicated.
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Definitions Streak. •. streak. the color of a mineral in powdered form. • Streak is more reliable than color for the identification of. minerals. • Streak is determined by rubbing some of the mineral. against an unglazed ceramic tile called a. streak plate. . Minerals of Earth’s Crust Section 1 Physical Properties of Minerals, continued Luster • luster the way in which a mineral reflects light• A mineral is said to have a metallic luster if the mineral reflects light as a polished metal does.
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- A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition.inerals can be described by various physical properties which relate to their chemical structure and composition. Common distinguishing characteristics include crystal structure and habit, hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, and specific gravity.
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- The physical characteristics of minerals include traits which are used to identify and describe mineral species. These traits include color, streak, luster, density, hardness, cleavage, fracture, tenacity, and crystal habit.
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Minerals Most people notice the often-beautiful colors of minerals when they first look at them. Minerals can be very beautiful colors. Same type of mineral may be found in a variety of colors. For instance, the minerals quartz can be found in many colors including pink, purple, white or black.The term luster refers to the quantity and quality of the light which is reflected from a mineral's exterior surfaces.ost people notice the often-beautiful colors of minerals when they first look at them. Minerals can be very beautiful colors. Same type of mineral may be found in a variety of colors. For instance, the minerals quartz can be found in many colors including pink, purple, white or black.
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- The common physical properties used to identify minerals include crystal form, luster, color, streak, hardness, cleavage, fracture, and specific gravity. However there are other properties used to identify minerals as well.These include reaction to acid, taste, smell, and magnetism. Some of these tests are more accurate then others when identifying minerals. For example color is not as reliable test as hardness.owever there are other properties used to identify minerals as well. These include reaction to acid, taste, smell, and magnetism. Some of these tests are more accurate then others when identifying minerals. For example color is not as reliable test as hardness.
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Properties of Minerals Streak is the color of the mineral in powdered form. Streak shows the true color of the mineral. In large solid form, trace minerals can change the color appearance of a mineral by reflecting the light in a certain way. Trace minerals have little influence on the reflection of the small powdery particles of the streak.
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- a transparent to translucent mineral that consists of a silicate of sodium and aluminum with some chlorine, has a vitreous or greasy luster, and … See the full definition
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- Luster. •. luster. the way in which a mineral reflects light. • A mineral is said to have a metallic luster if the mineral. reflects light as a polished metal does. • All other minerals have nonmetallic luster.
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What does luster mean pertaining to a mineral in science?   The luster of a mineral is the way its surface reflects light. Most terms used to describe luster are self-explanatory: metallic, earthy, waxy, greasy, vitreous (glassy) … , adamantine (or brilliant, as in a faceted diamond).etallic luster is a mineral description, referring the interaction of light with the crystal surface, in this case, the look of shiny metal. Simply, the shininess of a metal … . 34 people found this useful.
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- Since getting the luster right is the first critical step in keying out a mineral, always do your best to determine what the luster of a mystery mineral is before going on to the next step. Return to Key: Step 1
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MINERAL PROPERTIES: LUSTER Metallic-Minerals with a metallic luster are opaque and reflective, like metal. The metal lic elements, most sulfides, and some oxides belong in this category. Submetallic-Describes a mineral that is opaque to nearly opaque and reflects well.Thin splinters or sections of submetallic minerals are translucent.etallic-Minerals with a metallic luster are opaque and reflective, like metal. The metal lic elements, most sulfides, and some oxides belong in this category. Submetallic-Describes a mineral that is opaque to nearly opaque and reflects well.
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What is tungsten's steak, luster, cleavage, fracture, gravity, and transparency?? For example, gold and pyrite (fool's gold) are 2 look alike minerals, except pyrite has a different streak and luster than gold. This can be used to identify that the pyrite is NOT real gold. I really hope this helps.
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- Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral.The word traces its origins back to the latin lux, meaning light, and generally implies radiance, gloss, or brilliance. A range of terms are used to describe lustre, such as earthy, metallic, greasy, and silky.ustre or luster is the way light interacts with the surface of a crystal, rock, or mineral.
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- Color, luster, streak, hardness, cleavage, fracture, and crystal form are the most useful physical properties for identifying most minerals. Other properties-such as reaction with acid, magnetism, specific gravity, tenacity, taste, odor, feel, and presence of striations-are helpful in identifying certain minerals.
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High School Earth Science/Identification of Minerals Lesson Summary. 1  You can identify a mineral by its appearance and other properties. 2  The color and luster describe the appearance of a mineral, and streak describes the color of the powdered mineral. 3  A mineral has a characteristic density. 4  Mohs hardness scale is used to compare the hardness of minerals.
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- Mineral Properties. A mineral is a naturally-occurring, inorganic solid which possesses a characteristic internal atomic structure and a definite chemical composition. If we take the definition of a mineral term by term, it becomes easier to understand: