In the past few days in science, your view of minerals has likely changed. You've discovered that there are many different classes/types of minerals -- each with a unique set of properties that allows us to identify one mineral from another.
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- Minerals are identified by their properties. What are some of the properties you used to distinguish one mineral from another? Why is it best to use more than just one or two of these properties?
- Did some of the properties "work" better than others? Which ones were the most effective? Which were the least effective? Explain.
- What was the most difficult part of identifying minerals?
- How many minerals (of the 17) did you identify correctly?
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Hardness, magnitivity, matelic?, color.
ReplyDeleteHardness, color, Hardness most effetive, color was hard to tell but it was slightly helpful but least
some looked different than others,
11
1. I used mainly streak and it’s ability to scratch glass. I think it worked well because it identified the hardness of the mineral and the color of it in powder form.
ReplyDelete2. Some that worked well were magnetism, reactivity with acid, and streak. Some that didn’t work well were color and it’s ability to scratch glass.
3. The most difficult part was identifying minerals that looked similar. Because it was hard to tell the difference and sometimes I came up with the same mineral.
4. 11
1. We used color and look, along with hardness.
ReplyDelete2. Scratch test worked very well. The rare ones like magnetic and saltiness worked great for those special ones
3. Identifying the ones that look the same
4. Like 8 or 9???
1. Luster, Color, Hardness, Streak, Fracture. I used Streak a lot, but I used all of them. If you use more than one you can be sure that you know exactly what mineral it is. A lot of minerals have similar properties.
ReplyDelete2. I think streak was one of the most effective, because even though some rocks were the same color they had different color streaks.
I think the least effective was color. A lot of the minerals were different colors than they should have been and some were the same color as others.
3. Having two minerals that seemed to be the same one, but they really weren't.
4. eight, i think.
The color of the mineral although that is not very usefull, streak, taste especially halite. Whooooo.The most usefull property was streak becasue the streak is unique to each rock. I think that the least usefull was color because you can be easily wrong. The most difficult part was differentiating the rocks that were really close in all properties. We got 11 out of the 17 correct.
ReplyDelete1. Hardness, Luster, Streak, and Density. Because some minerals can have the same Luster but a different streak or other properties so you could think they were the same by the Luster if you didn't check the Streak.
ReplyDelete2. Yes, Hardness because it was easy to tell by testing quickly. They color could look different to other people.
3. Density, it would require a lot of math and measuring.
4. 11.
1. Taste, only a couple minerals have a salty taste making it a reliable way to name minerals. Its more accurate if you can identify minerals with 2 or more properties.
ReplyDelete2. Yes, some properties are more specific to minerals than all so you can identify some with just a few properties. Taste was effective since it was specific to a couple minerals. Color would be less effective because some minerals have a number of different colors.
3. Some minerals were similar to others, hard to distinguish similar.
4. 7
1. We used metallic-ness or nonmetallic-ness to identify minerals. We also used light colored or dark colored after we determined if it was metallic or nonmetallic. Then we checked if it reacted to chemicals. It is best to use more than one or two of these properties so you can distinguish the minerals faster to determine what type of mineral it is.
ReplyDelete2.The metallic or nonmetallic property worked best to distinguish the minerals because they narrowed down the types of minerals our mineral could be because if it was metallic, there were only about 8 different minerals it could be. The least effective property was if our mineral was magnetic because only one mineral on the list was magnetic so that didn't narrow the different minerals it could be very much.
3.The most difficult part was choosing which mineral it was between two minerals because two minerals would be very similar and there would only be one difference between them.
4.We correctly identified 13 minerals that were on the list and we identified two extra minerals that were not on the list so technically we correctly identified 15 minerals.
1) Distinguishing properties may include luster, streak, density, cleavage/fracture, color, etc. It is generally best to use more than one of these properties to determine the mineral because the more sources you have the more sure you can be that the material is in fact that mineral.
ReplyDelete2) Yes, you could say that. It was simple to determine the general group of minerals it was in by looking at its color and luster. However, in order to be more specific, you would have to look at the hardness, taste, etc. The least useful was probably color. Different factors were more useful than others to differentiate between minerals.
3) The hardest part would be if we found two minerals that were very similar, and deciding which one went where
4) Isaac and I identified 11 out of 17 minerals correctly
1. I used a various amount of properties including streak, luster, color, taste, hardness, cleavage, and fracture. It is best to use more than one because some properties aren’t as reliable as others. For example, color is really unreliable because some minerals come in many colors.
ReplyDelete2. Tasting the Halite was a sure way to know that it was halite because it was salty. The hardness of the mineral (if it scratched glass) was very helpful in figuring out what mineral it was because it narrowed the possibilities down by half.
3. The most difficult part was when it got down to two extremely similar minerals. Katie and I had the right answer on a few, but switched it to a different one.
4. 11 out of 17. The one’s we got wrong were either switched answers, where we had the right one but switched it, or ones we didn’t get to.
1) color, tastes, streak, luster, cleavage, magnetism
ReplyDelete2) the streak and color worked good
3) some of them looked alike and it was hard to tell what it was
4) i cant remember but i think 14
1. The properties used to identify minerals that we used were color, hardness, streak, acidity, magnetism and luster. It is best to use more than one property to identify a mineral because then you have a more definite answer. When you’re performing an experiment, you need to have more data to receive a very specific answer which is what you need.
ReplyDelete2. I believe that the most effective property was the non-metallic vs. metallic. This completely narrowed down both groups and it made it a lot easier to identify. The properties that didn’t work very well were magnetism and streak. None of our rocks were magnetic so that didn’t help at all. As for streak, there were many similar colors and some of them were hard to identify.
3. It was difficult to figure out the luster. Once we figured it out it was a lot easier to continue identifying, but some of the rocks that we thought had luster, really didn’t.
4. We identified 13/17 minerals overall.
1. I used color, hardness, and streak to identify minerals. The more properties you use the more accurate you are going to be with identification
ReplyDelete2. Hardness and streak were the most effective. Color was the hardest to work with because color descriptions were not specific
3. Identifing its color
4. 8
1.Magnetism and fluorescence. So that you are 100% sure of the rocks name.
ReplyDelete2.Yes. Luster and streak because their were few rocks with luster and all had different streaks. color because a lot of the rocks were very close to the same colors.
3. telling the color.
4. 6.
1. Color, Luster, Streak, Fracture, Cleavage, Hardness, Density, Fluorescence,and Chemical.
ReplyDeleteSome like color apply to more than one rock so if you narrow it down by using more, the rocks get cut down because not very many rocks have the same color,luster, density and other property's you use.
2.Because some do not apply to other properties, color worked well but Fluresence didn't because we didn't have a black light.
3. When they were the same color and both did not or did scratch glass.
4.I think we got 13.
taste, streak, density are all ways to find the identity of a mineral. you would want to use more than one of these methods so that you can narrow it down to a specific mineral. color worked well but florescent did not because we didn't have a black light. some look similar.10.
ReplyDelete1. Our group used multiple properties to identify minerals because some properties were more helpful than others. Some properties were magnetism, color, streak, metallic or non metallic, acidity, and hardness.
ReplyDelete2. Yes, some properties worked better because some were difficult to tell or some did not work on certain minerals. The most effective property was color because it was easy to tell the color. The least effective property was magnetism because none of our minerals were magnetic.
3. The most difficult part of identifying minerals was figuring out whether the mineral was metallic or non-metallic because it was difficult to classify.
4. Our group identified 13 minerals.
1. luster, cleavage, fracture, color, streak. It's best to use more than one because then your answers are more reliable.
ReplyDelete2. the properties that are less common are more reliable because they eliminate a lot of rocks.
3. the most difficult part was elimination the rocks that were similar.
4. i think it was like 9 or 10
1. Luster, streak, taste, because the minerals have things in common but you can identify a mineral by finding the different characteristics that it has.
ReplyDelete2. Streak, luster, hardness, because these properties and common and they and reliable. Color, fracture or cleavage, because these properties are unreliable.
3. Finding the properties in the rocks, they had many in common and it was hard to use see the different properties sometimes.
4. 11
1. Luster, streak, color, density, etc. We used many properties because some minerals have the same color, or same density and we needed to use multiple properties to tell the difference between those minerals.
ReplyDelete2. Streak was very reliable. It was always the same for an individual mineral. Color was unreliable though because color can change because of impurities in the mineral. Also, the unique properties were helpful because they eliminated many minerals from the choices.
3. The hardest part was telling the difference between the ones that were very similar. We even had 2 #12's so it was really confusing.
4. About 10
1) I can name a bunch of properties: color, luster, streak, cleavage, fracture, hardness, density, radioactivity, magnetivity (spelling?), taste, fluorescence, all of those. It's better to use more than one or two properties, because say you decide to use color to identify a mineral. Well, there a probably many other minerals with that same exact color, so you should use more properties (and reliable ones at that).
ReplyDelete2) Streak was probably the most effective out of all of the properties, because even if you have two minerals that are very similar in color, you can most likely tell them apart by streak, because the powdered forms will be different. Color isn't really effective. Sure, it can distinguish a mineral from another, but not every time. Some are very similar in color, and that's when you need to start using more properties to identify the mineral.
3) The hardest part of identifying the minerals was actually identifying the minerals. Yeah, I suppose some were easy, like mica and magnetite, but others were super hard, and we messed up those. We would try using the mineral identification chart, but sometimes, our findings would lead us to a mineral we'd already named, and we had to start over from scratch. (Hah. Scratch. Mineral humor.)
4) I don't remember the exact number, but I'd say we guessed about ten or eleven correctly. We had the first five or six right, and then our streak (more mineral humor) was ruined by an incorrect guess. CURSES.
PDP