Name: Heulandite (Na,Ca)2-3Al3(Al,Si)2Si13O36.12H2O
Type: Mineral
Class: Silicate
Subclass: Tectosilicate
Particle Size: Coarse
Sample No.: heulan_1
Owner: JHU
Wavelength Range: TIR
Origin: Teigarhora, Iceland via W. J. Ehmann #37.
Collection Date: N/A
Description: No solid sample was available.  Petrographically the sample was pure heulandite, with <1% of the grains showing parallel sets of (fluid) inclusions. Particle size was 74-250 Micrometers.(Zeolite Group) Original ASTER Spectral Library name was jhu.nicolet.mineral.silicate.tectosilicate.coarse.heulan1.spectrum.txt
Mineral:  Heulandite (Na,Ca)2-3Al3(Al,Si)2Si13O36.12H2O

Sample No.: heulan.1

Petrographic Description:  No solid sample was available.  
Petrographically the sample was pure heulandite, with <1% of the 
grains showing parallel sets of (fluid?) inclusions.

XRD Analysis:  The sample is heulandite with a trace of analcime 
present.

Chemistry:  Sample too small for analysis.
