1367 - Collection

Contents: 1. Platy Gypsum (CaSO4H2O) 2. Calcite (CaCO3) 3. Fluorite (CaF2) 4. Magnetic Iron Ore (Magnetite) (Fe3O4) – Magnetic iron ore (natural magnet) 5. Crystalline Quartz (SiO2) 6. Bauxite (Al2O3nH2O) 7. Feldspar (Orthoclase) K[AlSiO8] 8. Muscovite Mica KAl2[AlSiO10] 9. Biotite Mica K(Mg,Fe)3[AlSi3O10] 10. Sulfur – S 11. Chalcopyrite (Copper Pyrite) CuFeS2 12. Graphite C 13. Pyrite FeS2 14. Chalcedony (Flint) 15. Dense Limestone (Composition – Calcite) 16. Marble (Composition – Calcite) 17. Basalt (Composition – Olivine, Augite, Feldspar) 18. Sandstone (Composition – Quartz, Feldspar) 19. Red Granite (Composition – Quartz, Mica, Feldspar) 20. Gray Granite (Composition – Quartz, Mica, Feldspar) Gemstones 21. Agate 22. Amazonite 23. Aragonite 24. Datolite Skarn 25. Serpentine 26. Chalcedony 27. Labradorite 28. Lapis Lazuli 29. Listwanite 30. Malachite 31. Nephrite 32. Obsidian 33. Ophiocalcite 34. Mother-of-pearl 35. Radonite 36. Radusite 37. Smoky Quartz 38. Fluorite 39. Charoite 40. Jasper.