Scolecite crystal from India
Scolecite is usually colorless or white, but can also be pink, salmon, red or green. It is transparent to translucent, with a white streak and a luster which is vitreous, or silky for fibrous specimens. It has a Mohs hardness of 5 to 5 1⁄2 and a specific gravity in the range 2.16 to 2.40.
Crystal habit: Thin prismatic needles, radiating ...
Color: Colorless white, pink, salmon, red or green
Crystal system: Monoclinic
Mohs scale hardness: 5 to 5 1⁄2