The bed holding the upright crystals is also natrolite in confused matted masses.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

They form a large class of minerals of which Thomsonite and natrolite may be selected as examples.    From Wordnik.com.  [Elements of Agricultural Chemistry] Reference

It generally occurs in the form shown in Fig. 9, grouped very similarly to natrolite, and being right upon the rock or a thin bed of itself.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

Stilbite is characterized by its form, difficult gelatinizing, and intumescence before the blowpipe; from natrolite as mentioned under that species.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

Small quantities of this beautiful mineral have been found in Shaft No. 2, in a small bed of but a few square feet in area, but quite thick and appearing much like natrolite.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

This natrolite is a grouping of very small but perfect crystals, having the forms shown in Fig. 5; they are from a quarter to an inch long, and, if not perfectly transparent, are of a pure white color; they may be readily recognized by their form, and occurring in this bed.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

On the atomic level deformations in the auxetic zeolite natrolite.    From Wordnik.com.  [iMechanica - Comments] Reference

Ekkehardt furnishing an occasion for a visit to the Hohentwiel mountain in search of that golden-tinted natrolite mineral, which was duly found.    From Wordnik.com.  [Alone] Reference

This is seemingly at variance when we consider datholite, but when we do find it in pockets a hundred and fifty feet below the surface, in the Weehawken tunnel, it is not in the trap, but on the surface of what was a cleft or empty vein, since filled up with chlorite extending from the surface down, while natrolite, etc., by the trap having clefts of such variable and often great depth, allowed the solution of the portion thus contributed that infiltered from the surface easy access to the beds in which they lie, the mode of access being since filled with densely packed calcite, which was present in over-abundance.    From Wordnik.com.  [Scientific American Supplement, No. 363, December 16, 1882] Reference