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Minerals
Minerals

... Which rocks are made from sediment? Which rocks are made from magma? Which rock type can make metamorphic rock? What are rocks made of? ...
Minerals - Paul J. Goodenough
Minerals - Paul J. Goodenough

... (Lead), Cinnabar (Mercury).  Industrial rocks & minerals – useful nonmetallic ...
Vocabulary for Investigation 2: Scratch Test
Vocabulary for Investigation 2: Scratch Test

... a paper clip and has a glassy luster. Some colored forms of quartz are valued as gems. (Hardness = 7) 3) Fluorite- comes in a variety of colors, including white, blue, green and violet. Fluorite can be scratched with a paperclip. It usually fluoresces or glows under an ultraviolet light source. It i ...
Chapter 3
Chapter 3

... Talc – soft mineral -scratch with fingernail - talcum powder ...
Rocks and Minerals
Rocks and Minerals

... Rocks are made up of one or more minerals. Minerals are homogeneous, naturally occurring, inorganic solids. Each mineral has a definite chemical composition and a characteristic crystalline structure. A mineral may be a single element such as copper (Cu) or gold (Au), or it may be a compound made up ...
metropolitan museum of art
metropolitan museum of art

... categorize some of the earth materials in this gallery. This hall should not be assigned if your class has not completed a rock-related lab (e.g., Geologist as Detective, Geology of the New York City Metropolitan Area).  Near Eastern  Roman – Note that Roman artifacts share a gallery with those fr ...
Slide 1
Slide 1

... • Contains minerals from which most metals are ...
How do you Interpret Clues in Rocks?
How do you Interpret Clues in Rocks?

... Another clue comes from rubbing a mineral gently but firmly on a streak plate. You can often see a streak that’s the same color as the mineral surface. However, pyrite is a yellow mineral. When you rub it on a streak plate, you see a thin trail of black powder. ...
Here - Liquid Crystals and Photonics Group
Here - Liquid Crystals and Photonics Group

... Liquid crystals are widely used in display devices but their electro-optical properties can also be used in many other applications. In smart phones the autofocus is based on a small lens that can move with respect to the camera, and it would be more reliable to use an electronic component without m ...
Mohs Hardness Scale
Mohs Hardness Scale

... 9 - Corundum 10 - Diamond ...
Q4 Session Sheet 1:Properties of Matter Part 1
Q4 Session Sheet 1:Properties of Matter Part 1

... How is the volume of a solid measured? How is the volume of a liquid measured? How is the volume of a gas measured? Density: What determines whether one substance will sink or float when it is placed in another substance? What is density and how is the density of a substance calculated? Please watch ...
Autumn 2014 Year 3 - Crossacres Primary School
Autumn 2014 Year 3 - Crossacres Primary School

... Tasc: To create a learning resource for identifying rocks, soils and fossils. ...
Year 3 – Autumn 1 – Stone Age
Year 3 – Autumn 1 – Stone Age

... Tasc: To create a learning resource for identifying rocks, soils and fossils. ...
Minerals - Frost Middle School
Minerals - Frost Middle School

... Properties to help identify a mineral 1. Color a. Three factors that determine color • Tiny amounts of an element that is not part of the normal chemical makeup o Pure Quartz is clear and colorless but tiny amounts of iron make it violet – Called amethyst • Can change when it is at or near Earth’s ...
Autumn Term Year 3 - Crossacres Primary School
Autumn Term Year 3 - Crossacres Primary School

... Tasc: To create a learning resource for identifying rocks, soils and fossils. ...
Chapter 4.1
Chapter 4.1

... Slowly cooled magma becomes rock with large crystals Quickly cooled magma has small crystals ...
Minerals
Minerals

... Rock forming Minerals with Variations in Mineral Composition Page 88 Textbook: "Chemical composition can vary slightly depending on the temperature at which the mineral crystallizes." ex. Quartz with iron is yellow/brown color Amethyst = Silicon dioxide. Its purple coloring is usually caused by imp ...
Definition of a Rock Properties of Minerals: Tools for Identification
Definition of a Rock Properties of Minerals: Tools for Identification

... – Halite(rock salt) tastes salty. – Some minerals are exceptionally dense because they are composed of heavy elements, or contain closely-packed atoms. ...
April`s Mineral—Star Blue Quartz Alabama`s State Gemstone
April`s Mineral—Star Blue Quartz Alabama`s State Gemstone

... Several varieties of quartz are valuable as gemstones, including the popular amethyst variety. Alabama's state gem is the Star Blue Quartz, (SiO2,) Silicon dioxide. It is one of the most beautiful gemstones on earth, and the cheapest because there are so many. There are also other states with quartz ...
Color of a mineral in its powdered form
Color of a mineral in its powdered form

... How are minerals identified? Physical properties Crystal Form • External expression of the crystal structure • Crystal growth is often interrupted because of competition for space and rapid loss of heat ...
5SC12 Minerals of Earth`s crust
5SC12 Minerals of Earth`s crust

... minerals grow, they may develop a specific crystal shape with smooth, flat planes called crystal faces. Most minerals can grow into crystal shapes if they have the space (and time) to do so. Sometimes if magma cools too quickly, crystals do not have time to form. ...
Minerals2 Characteristics - Lincoln Park High School
Minerals2 Characteristics - Lincoln Park High School

... • Others can have their color changed. ...
Minerals
Minerals

... Minerals will have a certain density regardless of the size of the sample. When geologists compare the weight of the mineral to the weight of an equal volume of water it is called specific gravity. ...
Assignment 2 (MINERALS) Solution (1)
Assignment 2 (MINERALS) Solution (1)

... Please answer practice questions 3.4, 3.5, 3.6, 3.12 at the end of the text book. 3.4. How does the internal structure of a mineral relate to its external appearance? The unique internal arrangement of the atoms in minerals determines the shapes of crystal faces which in turn reflect to the external ...
Mineral and Rock Properties
Mineral and Rock Properties

... Mineral and Rock Properties ©2010 Dr. B. C. Paul Note most of the material for these slides was collected from a wide range of available sources and do not represent the organizers original work. ...
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Gemstone



A gemstone or gem (also called a fine gem, jewel, or a precious or semi-precious stone) is a piece of mineral crystal, which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli) or organic materials that are not minerals (such as amber or jet), are also used for jewelry, and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value. Rarity is another characteristic that lends value to a gemstone. Apart from jewelry, from earliest antiquity engraved gems and hardstone carvings, such as cups, were major luxury art forms. A gem maker is called a lapidary or gemcutter; a diamond worker is a diamantaire.The carvings of Carl Fabergé are significant works in this tradition.
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