JENIS MINERAL-POLARISASI BERSILANG

1. Sebutkan masing masing minimal 5 mineral yang memiliki Warna Interferensi orde 1, orde 2 dan orde 3! 

2. Sebutkan masing masing minimal 5 mineral yang memiliki tipe gelapan Sejajar, Simetri dan Miring dan berapa sudut gelapannya? Serta sebutkan mineral apasajakah yang memiliki gelapan tipe bergelombang dan bintik bintik!

3. Sebutkan mineral apa sajakah yang memiliki kembaran Albit, Carlsbad, dan Carlsbad Albit?

Jawab :

1.Mineral dengan warna interferensi orde1 :

1.      Corundum (Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 217)

2.      Orthoclase (Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 300 – 301)

3.      Andesine (Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 286 – 287)

4.      Beryl (Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 421 – 423)

5.      Chalcedony (Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 267 – 278)

Mineral dengan warna interferensi orde2 :

1.      Olivine(Kerr, Paul F. 1977. Optical Mineralogy. New York : McGraw-Hill Publishing Company. Page : 379 – 381)

2.      Jadeite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 355 – 356)

3.      Barite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 253 – 255)

4.      Kyanite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 401 – 403)

5.      Hornblende(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 369 – 373)

Mineral dengan warna interferensi orde3 :

6.      Prehnite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 467)

7.      Tourmaline(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 423 – 425)

8.      Epidote(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 413 – 415)

9.      Diopside(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 346 – 348)

10.  Colemanite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 252)

2. Mineral dengan tipe Gelapan Sejajar :

11.  Muscovite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 430 – 433)

12.  Biotite, 0^o– 3^o(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 437 – 440)

13.  Forsterite, 0^o(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 378 – 379)

14.  Olivine(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 379 – 381)

15.  Orthoclase, 5^o– 12^o(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 300 – 301)

Mineral dengan tipe Gelapan Simetri :

16.  Tremolite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 240 – 241)

17.  Siderite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 247 – 248)

18.  Calcite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 241 – 242)

19.  Dolomite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 245 – 246)

20.  Nephrite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 368 – 369)

Mineral dengan tipe Gelapan Miring :

21.  Anortite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 318 – 319)

22.  Actinolite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 366 – 367)

23.  Augite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 348 – 350)

24.  Diopside(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 346 – 348)

25.  Hornblende(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 369 – 373)

Mineral dengan tipe Bergelombang :

26.  Kuarsa(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 273 – 274)

Mineral dengan tipe Berbintik – bintik :

27.  Muscovite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 430 – 433)

3. Mineral dengan Kembaran Albit :

28.  Anortite(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 318 – 319)

29.  Plagioclase(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 308 – 309)

30.  Chrysoberyl(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 379)

31.  Oligoclase(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 314 – 315)

32.  Anorthoclase(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 307 – 308)

Mineral dengan Kembaran Carlsbad :

·         Orthoclase(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 300 – 301)

·         Sanidine(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 303 – 304)

Mineral dengan Kembaran Carlsbad Albit :

·         Plagioclase(Kerr, Paul F. 1977. Optical Mineralogy. New York :McGraw-Hill Publishing Company. Page : 308 – 309)

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