This group includes 50 rare or very rare samples, all from Somma Vesuvius, fumaroles, metamorphoses, lava and sanidinitici. Some species are very common, but I have included anyway because they are really rare at Vesuvius. Measurements MM, TN, weight about 270 grams.
In the picture: sarcolite, baddeleyite, artroeite, fluor-potassicrichterite, lazurite, mimetite, prehnite, quartz, red spinel.
1. Actinolite: bundles of white crystals, San Vito, Ercolano, Naples
2. Albite: milk white elongated crystals, Cava Trapolino, Sant’Anastasia, Naples
3. Ankerite: groups of selliform crystals on each other, Pollena, Naples
4. Artroeite: groups of white or colorless needle-shaped crystals, Crater of Vesuvius, Herculaneum, Naples
5. Baddeleyite: vertically striped brown tabular crystals, San Vito, Herculaneum, Naples
6. Caledonite: elongated blue crystals on tenorite, Cratere Vesuvio, Ercolano, Naples
7. Coverings: small yellow crystals, San Vito, Ercolano, Naples
8. Cerussite: imperfect opalescent crystals, Crater Vesuvius, Herculaneum, Naples
9. Chabazite: colorless pseudocubic crystals, Cava Vitiello, Terzigno, Naples
10. Chabazite: crystals facolitic dress, Lagno Amendolare, Sant’Anastasia, Naples
11. Challacolloite: small white-milk arborescent aggregate crystals, Cratere Vesuvio, Ercolano, Naples
12. Cotunnite: erupting white crystalline crust 1944, Fumarole Crater Vesuvius, Herculaneum, Naples
13. Chondrodite: orange complex crystals, San Vito, Ercolano, Naples
14. Crysocolla: green glass deposition on tenorite, Crater Vesuvius, Herculaneum, Naples
15. Ellestadite: bundles of light brown needle-shaped crystals, San Vito, Ercolano, Naples
16. Ferrisepiolite: yellow granules, San Vito, Herculaneum, Naples
17. Fluoborite: colorless elongated crystals, Cava Vitiello, Terzigno, Naples
18. Fluoronatrocoulsellite: groups of transparent and colorless octahedral crystals, Cratere Vesuvio, Ercolano, Napoli
19. Fluoro-potassicrichterite: blue-green crystals, Lagno Amendolare, Sant’Anastasia, Naples
20. Geikielite: dark complex crystal with metallic pyrrotite, San Vito, Herculaneum, Naples
21. Graphite: black lumps, San Vito, Ercolano, Naples
22. Guarinite: packets of yellow crystals, ex coll. Panunzi, Somma Vesuvio, Naples
23. Hydroxibritholite-Ce: small pale green elongated crystals on zircon, ex coll. Panunzi, Somma Vesuvio, Naples
24. Lazurite: blue lumps, ex coll. Panunzi, Somma Vesuvio, Naples
25. Kalsilite: brown decayed crystals, Pollena, Naples
26. Marialite: silky crystals in parallel association, Cava Le Novelle, Ercolano, Naples
27. Matlockite: transparent and colorless micaceous crystals, Crater Vesuvius, Herculaneum, Naples
28. Microsommite TL: silky crystals, Cava Vitiello, Terzigno, Naples
29. Mimetite: yellow acicular crystals, Crater Vesuvius, Herculaneum, Naples
30. Molybdenite: metal scales, San Vito, Ercolano, Naples
31. Montesommaite TL: truncated bipiramid crystals, Cava Vitiello, Terzigno, Naples
32. Opal: white accretion, Crater Vesuvius, Herculaneum, Naples
33. Paratacamite: green deposition on tenorite, Lave 1872, Torre del Greco, Naples
34. Pargasite: black elongated crystals, Cratere Vesuvio, Ercolano, Naples
35. Prehnite: light blue hemispheres, Pollena, Naples
36. Pyrite: small yellow cubes: Cava Trapolino, Sant’Anastasia, Naples
37. Pyrocloro: yellow octahedrons, ex coll. Panunzi, Somma Vesuvio, Naples
38. Quartz: transparent and colorless crystals, alpine dress, ex coll. Panunzi, Somma Vesuvio, Naples
39. Sarcolite TL: complex, transparent and colorless crystal, ex coll. Panunzi, Somma Vesuvio, Naples
40. Red spinel: complex red crystal, San Vito, Ercolano, Naples
41. Sulfur: yellow bipiramids, fumaroles from the crater floor, Cratere Vesuvio, Ercolano, Naples
42. Sylvite TL: white crystalline crust, Cratere Vesuvio, Ercolano, Naples
43. Tenorite: TL: groups of dark crystals, Crater Vesuvius, Herculaneum, Naples
44. Tenorite: TL: elongated metal crystals, ex coll. Panunzi, Somma Vesuvio, Naples
45. Thorianite: small cubic metallic crystal, rough, ex coll. Panunzi, Somma Vesuvio, Naples
46. Thorite on zircon: complex green crystal with zircon, ex coll. Panunzi, Somma Vesuvio, Naples
47. Uraninite: small complex metal cubes, San Vito, Ercolano, Naples
48. Acicular fibrous zeolites: curls of white acicular crystals on thomsonite, Cava Vitiello, Terzigno, Naples
49. Zircon: blue octahedrons, ex coll. Panunzi, Somma Vesuvio, Naples
50. Zirconolite: packages of red crystals, Cava Le Novelle, Ercolano, Naples