5.3" Sparkling Quartz Chalcedony after Scalenohedral Calcite - India

This is an absolutely stunning, 5.3" tall chalcedony encrusted calcite cluster, collected from the Nashik District of Maharashtra, India. The chalcedony has a beautiful sparkle and the scalenohedral shape of the calcite crystals are visible along one side of the specimen.

It comes with an acrylic display stand.

Chalcedony is any microcrystalline variety of silica composed of very fine intergrowths of quartz and mogánite: microcrystalline minerals have microscopic crystals that cannot be observed by the naked eye. Both quartz and mogánite have the same chemical formula SiO2 (silicon dioxide), but different crystal structures. When free from impurities, chalcedony is colorless and transparent. Depending on impurities present during formation, chalcedony can form in a wide variety of colors including red, yellow, green, blue, purple, grey, white, and numerous hues in between. Chalcedony is quite hard at 7 on the Mohs Hardness Scale: this matches its main component quartz, which is the benchmark mineral for the scale at 7.

Quartz var. Chalcedony
Nashik District, Nashik Division, Maharashtra, India
5.3 x 3.7"