Re: Rocks and Minerals Question Marathon
Posted: May 13th, 2012, 8:35 am
Got it all! Not bad, Fishman100.fishman100 wrote:1A) CaMg(CO3)2 1B) CaCO3 2) Druse 3) High manganese content 4) Organogenic
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Rocks and Minerals Question Marathon
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Re: Rocks and Minerals Question Marathon
Posted: May 13th, 2012, 8:51 am
just saying, i think posting follow up questions is really helpful. thanks
Re: Rocks and Minerals Question Marathon
Posted: May 13th, 2012, 11:03 am
Next question:
[img]http://tinyurl.com/buswpw8[/img] Some facts about this mineral: [list][*]This mineral belongs to the class that constitutes around 90% of the Earth's crust. [*]The dimorph of this mineral can sometimes be associated with pyrophanite. [*]Parts of the mineral may appear brown due to surface oxidation.[/list] 1) ID the mineral. 2) This mineral actually contains six elements: Mn, Fe, Mg, O, Si, and one other. What is the sixth element that is represented by the blue spheres in the image above? 3) What mineral class does this specimen belong to? 4) This specimen is the official state gem of what state? 5) Give another mineral on the 2012 SO Rock/Mineral list that also belongs to the same mineral class.
Re: Rocks and Minerals Question Marathon
Posted: May 13th, 2012, 8:30 pm
fishman100 wrote:Next question:[img]http://tinyurl.com/buswpw8[/img] Some facts about this mineral: [list][*]This mineral belongs to the class that constitutes around 90% of the Earth's crust. [*]The dimorph of this mineral can sometimes be associated with pyrophanite. [*]Parts of the mineral may appear brown due to surface oxidation.[/list] 1) ID the mineral. 2) This mineral actually contains six elements: Mn, Fe, Mg, O, Si, and one other. What is the sixth element that is represented by the blue spheres in the image above? 3) What mineral class does this specimen belong to? 4) This specimen is the official state gem of what state? 5) Give another mineral on the 2012 SO Rock/Mineral list that also belongs to the same mineral class.
1.Rhodonite 2. Calcium 3. Silicates (specifically inosilicates) 4. Massachusetts 5. Hornblende
Re: Rocks and Minerals Question Marathon
Posted: May 14th, 2012, 3:13 pm
Correct! Your turn.LoopQuantumGravity wrote:fishman100 wrote:Next question:[img]http://tinyurl.com/buswpw8[/img] Some facts about this mineral: [list][*]This mineral belongs to the class that constitutes around 90% of the Earth's crust. [*]The dimorph of this mineral can sometimes be associated with pyrophanite. [*]Parts of the mineral may appear brown due to surface oxidation.[/list] 1) ID the mineral. 2) This mineral actually contains six elements: Mn, Fe, Mg, O, Si, and one other. What is the sixth element that is represented by the blue spheres in the image above? 3) What mineral class does this specimen belong to? 4) This specimen is the official state gem of what state? 5) Give another mineral on the 2012 SO Rock/Mineral list that also belongs to the same mineral class.1.Rhodonite 2. Calcium 3. Silicates (specifically inosilicates) 4. Massachusetts 5. Hornblende
Re: Rocks and Minerals Question Marathon
Posted: May 14th, 2012, 8:08 pm
[img]https://encrypted-tbn0.google.com/images?q=tbn:ANd9GcTaL3P0kjxhzhqDhZOLWKYyr5uesXQc63l_ZctiJ1JkPye6cYHI[/img] 1. Name 3 minerals that have this arrangement of silicon-oxygen tetrahedra. 2. What type of cleavage is common in minerals with this structure? 3. What is the name for this group of silicates? 4. What is the ratio of silicon to oxygen in this group of silicates?
Re: Rocks and Minerals Question Marathon
Posted: August 11th, 2012, 5:14 pm
[hide]1. Name 3 minerals that have this arrangement of silicon-oxygen tetrahedra.
Talc, Biotite, Muscovite, Kaolinite, Lepidolite
2. What type of cleavage is common in minerals with this structure?
Perfect
3. What is the name for this group of silicates?
phyllosilicates
4. What is the ratio of silicon to oxygen in this group of silicates?
2:5[/hide]
Talc, Biotite, Muscovite, Kaolinite, Lepidolite
2. What type of cleavage is common in minerals with this structure?
Perfect
3. What is the name for this group of silicates?
phyllosilicates
4. What is the ratio of silicon to oxygen in this group of silicates?
2:5[/hide]
Re: Rocks and Minerals Question Marathon
Posted: August 21st, 2012, 2:24 pm
We should start the thread up again....
Re: Rocks and Minerals Question Marathon
Posted: August 22nd, 2012, 3:12 pm
we really should. i'm looking forward to this season 