Scolecite with Calcite Specimen #05 Rough Slice The blue shades of Sodalite

The blue shades of Sodalite are found intermingled with white Calcite

Hematite is an iron oxide mineral with a hardness of 5 to 6

Member of the feldspar family often forms near Schorl (Black Tourmaline) and Albite

Its crystal system is triclinic and prismatic

red/pinks/ violet and brown to black depending on the included elements

Scolecite with Calcite Specimen #05 Rough Slice The blue shades of Sodalite3. 25" x 1" x 0. 625" From Nasik, Maharastra, India Scolecite is a hydrous calcium aluminum silicate, a zeolite mineral with a hardness of 5 to 5. 5. Its crystal system is monoclinic. It occurs as thin, vertically striated prismatic crystals, and in radiating fibrous masses. It can be colorless, white, or yellowish, and it has a vitreous to silky luster. Scolecite forms in cavities in basaltic lavas, as well as cavities in syenites and granites.