A novelty at Tucson 2016 (but found in 2013). Complex Pyrite crystal, very rich in faces that are black colored due to a uniform Bornite coating Size 5x5 cm
very interesting combination od transparent, lucent purple crystals over white to green massive fluorite and calcite. ex Mascherpa collection size 10 x 7 x 4 cm
Prismatic crystals with very well defined faces and edges, most of them doubly terminated, a clear cream color, on a druse of rhombohedral crystals of Calcite. - Size 9x9x4 cm
Prismatic crystals with very well defined faces and edges, most of them doubly terminated, a clear cream color, on a druse of rhombohedral crystals of Calcite. - Size 10x9x6 cm
The Milpillas ones are without doubt the world's best for their luster, shape, good contrast with the white clay matrix and the crystal size of the best ones,Size 2x2 cm