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kate! wrote:

New Questions! (Click to Show Hidden Text)

[img]https://img.etsystatic.com/il/4b3e3b/815572218/il_fullxfull.815572218_h7mj.jpg[/img]
1. Identify this mineral.
2. What happens to some specimens when they are exposed to air?
3. What is another name for rhodonite?
4. What are some of its uses?
5. What is the origin of its name?

1. Rhodonite
2. It can tarnish black or brown
3. Manganese spar or manganolite
4. Ornamental stone, tumbled stones, ore of manganese.
5. From Greek word Rhodes, meaning rosy.

pb5754[] wrote:

Question (Click to Show Hidden Text)

[img]https://goo.gl/SZiq7q[/img]
1. What is this mineral?
2. What is its environment of formation?
3. Give two substances in which this mineral effervesces or is soluble in.
4. Give another name for this mineral and the locality after which it is named.
5. Give one variety of this mineral.
6. What is the tenacity of this mineral?

1. Azurite
2. As a secondary mineral in the oxidation zone of copper deposits (copied from my binder which is from minerals.net)
3. HCl, NH3
4. Chessylite, Chessy-les-Mines, France
5. Azuremalachite
6. Brittle. (most are)

dxu46 wrote:

pb5754[] wrote:

Question (Click to Show Hidden Text)

[img]https://goo.gl/SZiq7q[/img]
1. What is this mineral?
2. What is its environment of formation?
3. Give two substances in which this mineral effervesces or is soluble in.
4. Give another name for this mineral and the locality after which it is named.
5. Give one variety of this mineral.
6. What is the tenacity of this mineral?

Answers (Click to Show Hidden Text)

1. Azurite
2. As a secondary mineral in the oxidation zone of copper deposits (copied from my binder which is from minerals.net)
3. HCl, NH3
4. Chessylite, Chessy-les-Mines, France
5. Azuremalachite
6. Brittle. (most are)

dxu46 wrote:

General Knowledge Questions (Click to Show Hidden Text)

1. What does "vitreous" mean when used for describing a mineral's luster?
2. Is Ice considered a mineral?  Why or why not?
3. Name two examples of volcanic glass.
4. List three common cements.  How might each be identified in a sedimentary rock?
5. About how many times harder is Fluorite (4) than Talc (1)?
6. What does it mean if a mineral has no cleavage?
7. What does plagioclase feldspar being on the continuous side of the Bowen's Reaction Series mean?

1. A vitreous luster means the mineral is glassy.
2. Ice is a mineral because it has a legitimate chemical formula and crystal structure.
3. Obsidian and pumice.
4. a) calcite, identified by acid test/b) quartz, identified by hardness/c) hematite, identified by color (streak??)
5. Fluorite is about 21 times harder than talc.
6. If a mineral has no cleavage, that means when it is broken, it does not produce any fragments.
7. Plagioclase feldspar being on the continuous side of the Bowen's Reaction Series means that it changes from calcium-rich to sodium-rich at higher and lower temperatures, respectively, rather than changing to a different mineral.(?)

kate! wrote:

dxu46 wrote:

General Knowledge Questions (Click to Show Hidden Text)

1. What does "vitreous" mean when used for describing a mineral's luster?
2. Is Ice considered a mineral?  Why or why not?
3. Name two examples of volcanic glass.
4. List three common cements.  How might each be identified in a sedimentary rock?
5. About how many times harder is Fluorite (4) than Talc (1)?
6. What does it mean if a mineral has no cleavage?
7. What does plagioclase feldspar being on the continuous side of the Bowen's Reaction Series mean?

Answers (Click to Show Hidden Text)

1. A vitreous luster means the mineral is glassy.
2. Ice is a mineral because it has a legitimate chemical formula and crystal structure.
3. Obsidian and pumice.
4. a) calcite, identified by acid test/b) quartz, identified by hardness/c) hematite, identified by color (streak??)
5. Fluorite is about 21 times harder than talc.
6. If a mineral has no cleavage, that means when it is broken, it does not produce any fragments.
7. Plagioclase feldspar being on the continuous side of the Bowen's Reaction Series means that it changes from calcium-rich to sodium-rich at higher and lower temperatures, respectively, rather than changing to a different mineral.(?)

kate! wrote:

More General Knowledge Because That Was a Good Idea (Click to Show Hidden Text)

1. Why are diamond and graphite different minerals if they're both made of carbon?
2. What's the name origin of Aragonite?
3. What is the difference between cleavage and fracture?
4. What type of minerals exhibit hackly fracture? Give 2 examples.
5. Give 3 examples of epigenetic changes and define them.

1. Diamond and Graphite are different allotropes of carbon. 
2. It comes from Molina de Aragon, Spain.
3. Cleavage is the breaking of minerals along planes with weak bonding zones. Fracture is the breaking of minerals without a definite shape.
4. Copper, Silver
5. Not sure....?