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Is diamond a silicate?
No, diamond is not a silicate. Diamond is composed of carbon atoms arranged in a crystal lattice structure, whereas silicates contain silicon and oxygen atoms in their chemical composition.
Is graphite a non silicate?
Yes, graphite is a non-silicate mineral. It is composed of carbon atoms arranged in a hexagonal crystal structure, making it a native element mineral rather than a silicate mineral which contains silicon and oxygen.
Why are silicon and oxygen important with respect to crystal structure?
Silicon and oxygen are important for crystal structure because they are the building blocks of most minerals and rocks. Together, they form the silicate group which is the most common mineral group in the Earth's crust. The arrangement of silicon and oxygen atoms in a crystal lattice gives minerals their unique physical and chemical properties.
Two Examples of a non-silicate structure?
Carbonate minerals, such as calcite, have a non-silicate structure composed of carbonate ions (CO3^2-) linked together with metal ions like calcium. Oxide minerals, such as hematite, have a non-silicate structure made up of oxygen ions connected with metal ions like iron.
What is a silicate with surfaces that meet nearly at right angles?
A mineral with surfaces meeting nearly at right angles is orthoclase Feldspar. It is a common silicate mineral found in igneous and metamorphic rocks. Its crystal structure forms a framework with cleavage planes meeting at approximately 90 degrees.
What is the difference in silicates such as asbestos mica and quartz?
Asbestos is a fibrous silicate mineral known for its heat resistance; mica is a silicate mineral with a layered structure commonly used in electronics; quartz is a silicate mineral composed of silicon and oxygen atoms arranged in a crystal lattice, often used in jewelry and as a building material.
What class is kyanite in?
Kyanite is classified as a silicate mineral, specifically under the phyllosilicate group. It is characterized by its layered crystal structure and is primarily composed of aluminum silicate. Kyanite is commonly found in metamorphic rocks and is known for its variable hardness, which depends on the crystal orientation.
Is diamond a silicate?
No, diamond is not a silicate. Diamond is composed of carbon atoms arranged in a crystal lattice structure, whereas silicates contain silicon and oxygen atoms in their chemical composition.
Is graphite a non silicate?
Yes, graphite is a non-silicate mineral. It is composed of carbon atoms arranged in a hexagonal crystal structure, making it a native element mineral rather than a silicate mineral which contains silicon and oxygen.
Is galena a silicate or non silicate?
Galena is a non-silicate mineral. It is primarily composed of lead sulfide (PbS) and belongs to the sulfide mineral group. Unlike silicate minerals, which contain silicon and oxygen, galena does not have this composition. It is the main ore of lead and is known for its metallic luster and cubic crystal structure.
Why is emerald a sillacate mineral?
Emerald is classified as a silicate mineral because its chemical structure contains silicon and oxygen, which are the primary components of silicate minerals. Specifically, emerald is a variety of beryl, with the chemical formula Be₃Al₂(SiO₃)₆, indicating that it includes the silicate tetrahedra (SiO₄) as part of its crystalline framework. This silicate structure contributes to its unique properties, such as its distinctive green color, which is caused by trace amounts of chromium and vanadium. Thus, emerald's classification as a silicate is rooted in its composition and crystal structure.
What are the 6 main crystalline structures of silicate minerals?
The six main crystalline structures of silicate minerals are isolated tetrahedra, single chain, double chain, sheet, framework, and ring structures. Each structure is based on how the silicate tetrahedra are arranged and linked together in the mineral's crystal lattice.
What is the mineral group for amethyst?
Amethyst is a variety of quartz, which is a member of the silicate mineral group. It is characterized by its purple color, which is caused by the presence of trace amounts of iron in the crystal structure.
Hornblende has what type of silicate structure?
Hornblende has a double chain silicate structure. This structure consists of pairs of linked tetrahedra that form continuous chains in two dimensions.
Is quartz a three-dimensional framework silicate?
Yes, quartz is a three-dimensional framework silicate. It is composed of silicon-oxygen tetrahedra linked in a continuous framework structure, where each silicon atom is bonded to four oxygen atoms. This arrangement gives quartz its characteristic hardness and crystal structure.
Which silicate mineral forms a double chain silicate structure?
amphibole
Is Cleavage in silicate minerals is related to the silicate structure?
Yes, cleavage in silicate minerals is related to the arrangement of silicon-oxygen tetrahedra in their structure. The presence of planes of weakness along specific crystallographic directions in the silicate structure allows for cleavage to occur. This cleavage in silicate minerals is typically observed along planes parallel to the tetrahedral sheets in their structure.
