MDS548.3

Wording: Natural sciences and mathematicsChemistryCrystallographyCleavage; Isomorphism; Polymorphism

Dewmoji: 🔬⚗️💎?

0
Information
216,948
ℹ️
1
Philosophy and Psychology
229,419
💭
2
Religions
562,779
🙏
3
Social sciences
1,169,921
👫
4
Language
177,109
💬
5
Natural sciences and mathematics
380,441
🔬
6
Technology
844,132
💡
7
The arts
857,504
🎨
8
Literature
1,201,263
📚
9
History and Geography
703,933
🗺️
50
General Science
30,392
🔬
51
Mathematics
73,720
52
Astronomy
21,519
🔭
53
Physics
38,941
🍎
54
Chemistry
25,962
⚗️
55
Earth sciences & geology
32,170
🌎
56
Fossils & prehistoric life
9,345
💀
57
Life Sciences, Biology
50,256
🧬
58
Plants
22,401
🌿
59
Zoology
75,735
🐼
540
Chemistry
5,816
541
Physical; Theoretical
5,428
💭
542
Chemical laboratories
464
🔬
543
Analytic
3,168
🌈
544
Qualitative Analysis [No longer used]
273
545
Quantitative Analysis [No longer used]
228
546
Inorganic
2,379
547
Organic
5,828
548
Crystallography
933
💎
549
Mineralogy
1,445
548.0
18
548.1
Systems of crystallization
6
548.2
Twin crystals; Crystallin aggregations
2
548.3
Cleavage; Isomorphism; Polymorphism
13
548.4
Irregularities; Internal imperfections
548.5
Formation and growth of crystals
115
548.6
Pseudomorphs
548.7
Mathematical: measurement of angles
46
548.8
Physical
283
548.9
Optical
61
🤓

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"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

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Wording

1922 Edition
Do NOT copy from the copyrighted sources. 1922 edition here, in absurd phonetic English. Use standard spelling.
Modern Language
Modern wording should be based on the Free Decimal System or on the 1922 edition of Dewey. Language and concepts may be modernized. Do not use an in-copyright source.
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