Right on!dxu46 wrote:Is this Zircon? 1. Zircon 2. ZirconiumMagikarpmaster629 wrote:While we're waiting on that, here's a nationals mineral:
1. ID the red-brown vitreous mineral (not the metallic one it's on)
2. What is this commonly an ore of?

Right on!dxu46 wrote:Is this Zircon? 1. Zircon 2. ZirconiumMagikarpmaster629 wrote:While we're waiting on that, here's a nationals mineral:
1. ID the red-brown vitreous mineral (not the metallic one it's on)
2. What is this commonly an ore of?
Pfft, who needs images 1. Azuritedxu46 wrote:Okay....
1. What is the blue mineral?
2. What is the green mineral?
3. Why are these two minerals often found together?
Edit: The image isn't working. Hint: Both minerals have a hardness around 3.5-4
Correct! Your turn.Magikarpmaster629 wrote:Pfft, who needs images 1. Azuritedxu46 wrote:Okay....
1. What is the blue mineral?
2. What is the green mineral?
3. Why are these two minerals often found together?
Edit: The image isn't working. Hint: Both minerals have a hardness around 3.5-4
2. Malachite
3. Same mineral environment- both formed as secondary minerals in copper deposits
Ahhh, sorry for the delay. You're right, though!Magikarpmaster629 wrote:Hmm, 1. Albite plagioclase 2. Felsic igneous rockdechirico wrote:Awesome! Now, next question:
1. ID the mineral. 2. What kind of rocks does this specimen most widely occur in?
My season is over but I'l'l still give it a go:Magikarpmaster629 wrote:Concept questions!
1. There are two types of metamorphism: regional and contact. Briefly describe the process for each, and give examples of rocks that form in these environments.
2. Although sometimes these are listed as the only types of metamorphism, there are others. Name three other, less prevalent types of metamorphism.
1. Contact metamorphism is caused by rock which comes into contact with magma. The intense heat causes the nearby rock to metamorphose. This is typically over a shorter region because the rock must be in close proximity with the magma. Examples: Marble, Quartzite Regional metamorphism typically occurs over a larger area and the metamorphism is usually associated with convergent boundaries or island formation. The intense pressure caused by colliding plates provides an ideal environment for the formation of these rocks. Examples: Gneiss, Mica 2. Retrogressive, dynamic, shock
Nice answers! Your turnJoJoKeKe wrote:My season is over but I'l'l still give it a go:Magikarpmaster629 wrote:Concept questions!
1. There are two types of metamorphism: regional and contact. Briefly describe the process for each, and give examples of rocks that form in these environments.
2. Although sometimes these are listed as the only types of metamorphism, there are others. Name three other, less prevalent types of metamorphism.
1. Contact metamorphism is caused by rock which comes into contact with magma. The intense heat causes the nearby rock to metamorphose. This is typically over a shorter region because the rock must be in close proximity with the magma. Examples: Marble, Quartzite Regional metamorphism typically occurs over a larger area and the metamorphism is usually associated with convergent boundaries or island formation. The intense pressure caused by colliding plates provides an ideal environment for the formation of these rocks. Examples: Gneiss, Mica 2. Retrogressive, dynamic, shock
JoJoKeKe wrote:My season is over but I'l'l still give it a go:Magikarpmaster629 wrote:Concept questions!
1. There are two types of metamorphism: regional and contact. Briefly describe the process for each, and give examples of rocks that form in these environments.
2. Although sometimes these are listed as the only types of metamorphism, there are others. Name three other, less prevalent types of metamorphism.
1. Contact metamorphism is caused by rock which comes into contact with magma. The intense heat causes the nearby rock to metamorphose. This is typically over a shorter region because the rock must be in close proximity with the magma. Examples: Marble, Quartzite Regional metamorphism typically occurs over a larger area and the metamorphism is usually associated with convergent boundaries or island formation. The intense pressure caused by colliding plates provides an ideal environment for the formation of these rocks. Examples: Gneiss, Mica 2. Retrogressive, dynamic, shock
Would these types of questions be at national level tournaments? This is my first yeardechirico wrote:Ahhh, sorry for the delay. You're right, though!Magikarpmaster629 wrote:Hmm, 1. Albite plagioclase 2. Felsic igneous rockdechirico wrote:Awesome! Now, next question:
1. ID the mineral. 2. What kind of rocks does this specimen most widely occur in?