"Observe and Describe Minerals" Rocks and Minerals PPT Courseware 2 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Observe and Describe Mi... | 24575次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Observe and Describe Minerals" Rocks and Minerals PPT Courseware 2 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Observe and Describe Minerals" Rocks and Minerals PPT Courseware 2, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Observe and Describe Minerals" Rocks and Minerals PPT Courseware 2
mineral color
Color is the most easily observed characteristic of minerals and is also one of the important bases for identifying minerals. Some minerals are named after their colors.
The degree of brightness on the surface of a mineral is called luster
Divided into: metallic luster, semi-metallic luster, non-metallic luster
Non-metallic luster
Vitreous luster (glass-like luster)
Greasey shine (like smeared with fat)
Pearl luster (like the luster given off by pearls)
Silk luster (like silk fabric shining)
Earthy luster (the surface is dimly reflective like dirt)
mineral streaks
Mineral streaks are traces of powder left behind when minerals are rubbed against unglazed white porcelain. After the mineral is ground into powder, it can eliminate false colors and weaken other colors, so the color of the mineral streaks is relatively fixed. The color of mineral streaks mainly has identification significance for metallic minerals.
Identify gold ore and chalcopyrite
Use the ore to scratch the unglazed white porcelain plate. The streaks drawn by the natural gold ore (that is, the powder left on the white porcelain plate) are golden yellow, and the streaks of pyrite are green and black.
Criteria for judging the hardness and softness of minerals
Soft that can be carved with nails;
Do not carve marks with your fingernails,
But the ones that can be carved with copper keys are softer;
You cannot carve traces with a copper key,
But the ones that can be carved with a knife are harder;
It's so hard that it can't be carved with a copper key or a knife.
What are the hardest and hardest minerals?
Largest: Diamond Smallest: Graphite
transparency
The degree to which light can pass through a mineral is called transparency
Divided into: transparent, translucent, opaque
Keywords: Rocks and Minerals teaching courseware, Observation and Description of Minerals teaching courseware, Educational Science Edition fourth grade science PPT courseware download, Volume 2, Fourth grade science slide courseware download, Rocks and Minerals PPT courseware download, Observation and Description of Minerals PPT courseware download, .PPT Format;
For more information about the "Rocks and Minerals Observation and Description of Minerals" PPT courseware, please click on the Rocks and Minerals ppt Observation and Description of Minerals ppt tag.
"Observing and describing minerals (2)" Rocks and minerals PPT download:
"Observing and Describing Minerals (2)" Rocks and Minerals PPT Download Part One: Importing New Knowledge From what aspects do we already know how to observe and describe minerals? The color of minerals, the streaks of minerals, the hardness of minerals. Let's learn a few more ways to observe and describe minerals...
"Observing and describing minerals (2)" Rocks and minerals PPT:
"Observing and Describing Minerals (2)" Rocks and Minerals PPT Part One: Transparency and Gloss of Minerals What is the light transmission of the following papers? How do we describe the light transmission of these papers? Activity 1: Use a flashlight to shine on transparent paper and translucent paper respectively.
"Observing and describing minerals (1)" Rocks and minerals PPT download:
"Observing and Describing Minerals (1)" Rocks and Minerals PPT Download Part One: Introduction of New Knowledge Thinking: When observing these two minerals, from what aspects did you observe? ◆We can observe the color of minerals; ◆Observe the stripes of minerals; ◆..