Rocks and Minerals B/C

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ScottMaurer19
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Re: Rocks and Minerals B/C

Postby ScottMaurer19 » December 27th, 2017, 8:53 am

Are the two minerals on the list? I'd say the druzy background is mainly quartz. Would the large crystal be sphalerite? Only thing I can remember about Franklin is that it's full of zinc ore, so that would make the most sense.
You would be correct about both.
2. Perfect
3. Hydrothermal
4. Sphalerite is an ore of zinc
5. Rock crystal
2. Perfect, 6-directional
3. yes
4. yes
5. Cleiophane
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80

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kate!
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Re: Rocks and Minerals B/C

Postby kate! » January 21st, 2018, 8:04 am

Since no one's been active on here for months, I'll post a question.

Image
What mineral is this, what family is it in, and what is its hardness?
Last year I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Now I know stuff about amphibians, reptiles, water, and more experiments, yay again!
I'm planning to learn stuff about oceanography, fossils, and more water, yay for the third time!

ScottMaurer19
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Posts: 588
Joined: January 5th, 2017, 9:39 am
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Re: Rocks and Minerals B/C

Postby ScottMaurer19 » January 21st, 2018, 9:12 am

Since no one's been active on here for months, I'll post a question.

Image
What mineral is this, what family is it in, and what is its hardness?
1. Chalcedony
2. (tecto)silicates
3. 7
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80

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kate!
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Joined: October 11th, 2017, 12:07 pm
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Location: Ward Melville HS

Re: Rocks and Minerals B/C

Postby kate! » January 21st, 2018, 1:45 pm

Since no one's been active on here for months, I'll post a question.

Image
What mineral is this, what family is it in, and what is its hardness?
1. Chalcedony
2. (tecto)silicates
3. 7
Yep! Those are right!
Last year I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Now I know stuff about amphibians, reptiles, water, and more experiments, yay again!
I'm planning to learn stuff about oceanography, fossils, and more water, yay for the third time!

ScottMaurer19
Member
Member
Posts: 588
Joined: January 5th, 2017, 9:39 am
Division: Grad
State: OH
Location: Solon, OH

Re: Rocks and Minerals B/C

Postby ScottMaurer19 » January 21st, 2018, 2:12 pm

Image
1. Identify
2. Crystal system
3. Does this specimen react with HCl?
4. Which mineral is at the other end of a solid solution series with this specimen?
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80

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dxu46
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Re: Rocks and Minerals B/C

Postby dxu46 » January 21st, 2018, 2:33 pm

Image
1. Identify
2. Crystal system
3. Does this specimen react with HCl?
4. Which mineral is at the other end of a solid solution series with this specimen?
1. Calcite?
2. Hexagonal
3. Yes
4. Dolomite?

ScottMaurer19
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Posts: 588
Joined: January 5th, 2017, 9:39 am
Division: Grad
State: OH
Location: Solon, OH

Re: Rocks and Minerals B/C

Postby ScottMaurer19 » January 21st, 2018, 2:40 pm

Image
1. Identify
2. Crystal system
3. Does this specimen react with HCl?
4. Which mineral is at the other end of a solid solution series with this specimen?
1. Calcite?
2. Hexagonal
3. Yes
4. Dolomite?
All are correct
Solon '19 Captain, CWRU '23
2017 (r/s/n):
Hydro: 3/5/18
Robot Arm: na/1/1
Rocks: 1/1/1

2018 (r/s/n):
Heli: 2/1/7 
Herp: 1/4/4
Mission: 1/1/6
Rocks: 1/1/1
Eco: 6/3/9

2019 (r/s/n):
Fossils: 1/1/1
GLM: 1/1/1
Herp: 1/1/5
Mission: 1/1/3
WS: 4/1/10

Top 3 Medals: 144
Golds: 80

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dxu46
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Joined: April 11th, 2017, 6:55 pm
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State: MO

Re: Rocks and Minerals B/C

Postby dxu46 » January 24th, 2018, 6:31 pm

General knowledge questions
1. What is the difference between continuous and discontinuous when it comes to the Bowen's Reaction Series?
2. Define isometric.
3. What is the hardness of your fingernail?
4. What are elements commonly found in Mafic Igneous rocks?  Felsic?
5. Why are properties like streak and density unorthodox ways to identify rocks?

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kate!
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Re: Rocks and Minerals B/C

Postby kate! » January 29th, 2018, 7:57 am

General knowledge questions
1. What is the difference between continuous and discontinuous when it comes to the Bowen's Reaction Series?
2. Define isometric.
3. What is the hardness of your fingernail?
4. What are elements commonly found in Mafic Igneous rocks?  Felsic?
5. Why are properties like streak and density unorthodox ways to identify rocks?
1. Continuous means the evolution of plagioclase feldspar from being calcium-rich to sodium-rich. Discontinuous means the formation of mafic minerals like olivine, pyroxene, biotite mica, and amphibole
2. Isometric is the cubic crystal system.
3. 2.5
4. Mafic= iron (Fe) and magnesium (Mg) Felsic= aluminum (Al) and silicon (Si)
5. Properties like streak and density aren't usually used to classify rocks because of how common they are between each kind of rock. Instead, we use texture to classify them because each rock has a different texture.
Last year I knew stuff about rocks, minerals, experiments, and ecosystems, yay!
Now I know stuff about amphibians, reptiles, water, and more experiments, yay again!
I'm planning to learn stuff about oceanography, fossils, and more water, yay for the third time!

User avatar
dxu46
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Posts: 798
Joined: April 11th, 2017, 6:55 pm
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State: MO

Re: Rocks and Minerals B/C

Postby dxu46 » January 29th, 2018, 5:18 pm

General knowledge questions
1. What is the difference between continuous and discontinuous when it comes to the Bowen's Reaction Series?
2. Define isometric.
3. What is the hardness of your fingernail?
4. What are elements commonly found in Mafic Igneous rocks?  Felsic?
5. Why are properties like streak and density unorthodox ways to identify rocks?
1. Continuous means the evolution of plagioclase feldspar from being calcium-rich to sodium-rich. Discontinuous means the formation of mafic minerals like olivine, pyroxene, biotite mica, and amphibole
2. Isometric is the cubic crystal system.
3. 2.5
4. Mafic= iron (Fe) and magnesium (Mg) Felsic= aluminum (Al) and silicon (Si)
5. Properties like streak and density aren't usually used to classify rocks because of how common they are between each kind of rock. Instead, we use texture to classify them because each rock has a different texture.
#1 is almost directly copied from this, but correct, your turn.


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