Niccioleta minerals page

Niccioleta mines are very famous mostly for pyrite crystals (often typically striated and elongated, like the first photo in this page), but also for other minerals, such as gypsum and sulphur too. The minerals can be found in two different occurrences: a group related with the main ore minerals, and another group in the skarn occurrence

	Celestine Group of celestine XX, the one in evidence is 2 cm long, without damages. Celestine stands on a small mineralized matrix 3.5x3cm Niccioleta mine, Grosseto. Italy Specimen n.1293 2nd photo
	Celestine Pale blue XX of celestine, on a matrix with celestine and calcite 5x3cm Niccioleta mine, Grosseto. Italy Specimen n.179 Another photo: entire piece
	Gypsum (selenite) Semitransparent X (dimension: 8.5x7cm) well terminated, on calcite matrix with some small XX of quartz. On a corner there is a cubic X of pyrite, with natural fractures, 2.5cm long. It is a typical sample from this mine, collected at the beginning of the 80's 9.5x7cm Niccioleta mine, Grosseto. Italy Specimen n.151 Another photo: a different view
	Gypsum (selenite) Large X, with pyrite small XX. Inside the X it is possible to see clay inclusions, the gypsum is very transparent 12x7cm Niccioleta mine, Grosseto. Italy Specimen n.1282 Another photo: a different view
	Gypsum (selenite) Transparent X of selenite, well terminated, 2.7cm long, on gypsum matrix 3.6x2.8cm Niccioleta mine, Grosseto. Italy Specimen n.152
	Gypsum (selenite) Two well formed XX, up to 3cm on edge, on piritic matrix 3.7x5cm Niccioleta mine, Grosseto. Italy Specimen n.154
	Gypsum (selenite) Floating X, edge up to 4.7cm, covered by small XX and grains of pyrite 6.5x4cm Niccioleta mine, Grosseto. Italy Specimen n.153
	Gypsum (selenite) Prismatic XX, floating (it is the combination of two twinned XX), 10cm tall 10x2cm Niccioleta mine, Grosseto. Italy Specimen n.157
	Gypsum (selenite) Prismatic X of Gypsum, with some sulphur and limestone. Near the tip there is a group of smallest XX, curved as often occurs with gypsum (see the other photo) 13x5cm Niccioleta mine, Grosseto. Italy Specimen n.158 See another view
	Pyrite An aggregate of cubic XX, edge max 1.5cm, on compact pyrite. This kind of XX, striated (called "triglifa" in Italian) and elongated, were typical for this mine 13x7.5cm Niccioleta mine, Grosseto. Italy Specimen n.6 Another photo: entire piece
	Pyrite Cubic X, edge of 2.3cm, on a cavity covered by micro-crystalline aragonite, fluorescent in red; the cavity is 6x8cm wide, in a block of massive pyrite 14.5x12cm Niccioleta mine, Grosseto. Italy Specimen n.1
	Pyrite Cubic XX, grown together, edge max 3.8cm 11x10cm Niccioleta mine, Grosseto. Italy Specimen n.5
	Pyrite Cubic intergrowing XX , the biggest is 8.5 x 6.5 cm, with a small hematite rosette on a corner 15x12cm Niccioleta mine, Grosseto. Italy Specimen n.7
	Pyrite Complex shaped XX, edge max 4cm 5.5x5cm Niccioleta mine, Grosseto. Italy Specimen n.3 Another photo: a different and bigger view
	Pyrite Cubic XX of striated pyrite (triglifa) covered (maybe epitaxy) by complex XX of galena. There is also minor sphalerite 8.5x12cm Niccioleta mine, Grosseto. Italy Specimen n.409 Another photo: a bigger view on detail
	Pyrite Cubic XX, edge max 2cm, covered by very small XX of galena (see the 2nd photo) 8.5x7cm Niccioleta mine, Grosseto. Italy Specimen n.1249 2nd photo 3rd photo
	Pyrrothite Hexagonal XX with edge up to 1.8cm, on pyrite. A small truncated octahedral of fluorite 5x4cm Niccioleta mine, Grosseto. Italy Specimen n.531 Another photo: a different view
	Quartz Some XX, two of them are hyaline, max 4.5. There are some 1st generation XX, like the two in the photo, partially covered by 2nd generation quartz, with small XX 10.5x8cm Niccioleta mine, Grosseto. Italy Specimen n.214 Another photo: entire piece
	Sulphur Fat XX of sulphur on mineralized matrix. The XX are up to 1.3 an wide 13x8cm Niccioleta mine, Grosseto. Italy Specimen n.1283
	Sulphur Nice XX, edge max 0.4 cm. some of them have a skeletal appearance. The XX are posted on a pale blue, gray celestine matrix. Old piece from this mine 4x4.5cm Niccioleta mine, Grosseto. Italy Specimen n.172 Another photo: entire piece