Scolecite's larger crystals tend to be more robust and durable. Luster is vitreous to dull on some compact masses. Also nodules, fiberous and massive crusts. Cleavage is perfect in two directions, prismatic. Cleavage is rarely seen due to small crystal size.
Fracture is conchoidal.
Hardness is 5 - 5.5. Streak is white. Associated Minerals are quartz , apophyllite , benitoite , heulandite , stilbite and other zeolites . Best Field Indicators are crystal habit, density and associations.