whythelongface wrote:ScottMaurer19 wrote:You would be correct about both.whythelongface wrote: 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.2. Perfect 3. Hydrothermal 4. Sphalerite is an ore of zinc 5. Rock crystal
2. Perfect, 6-directional 3. yes 4. yes 5. Cleiophane
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
kate! wrote:Since no one's been active on here for months, I'll post a question.
What mineral is this, what family is it in, and what is its hardness?
1. Chalcedony 2. (tecto)silicates 3. 7
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
Yep! Those are right!ScottMaurer19 wrote:kate! wrote:Since no one's been active on here for months, I'll post a question.
What mineral is this, what family is it in, and what is its hardness?1. Chalcedony 2. (tecto)silicates 3. 7
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
ScottMaurer19 wrote:
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 correctdxu46 wrote:ScottMaurer19 wrote:
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?
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
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?
dxu46 wrote: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.kate! wrote:dxu46 wrote: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.
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