Chemical Formula: Na2Si4O8(OH)2 4H2O
Familly: Silicates
Status: IMA-A
Crystal System: Monoclinic
Mineral for Display: No
UV Type | Main color | Intensity | Observation Frequency |
---|---|---|---|
Long Waves (365nm): | Bluish White | Medium | Mid waves (320 nm): | Bluish White | Medium | Short Waves (254 nm): | Bluish White | Medium |
Other colors LW: | Yellowish White , | ||
Other colors MW: | Yellowish White , Greenish , | ||
Other colors SW: | Yellowish White , |
UV Type | Color | Intensity | Observation Frequency |
---|---|---|---|
Long Wave (365nm): | White | Weak | Mid Waves (320 nm): | White | Weak | Short Waves (254 nm): | White | Weak |
In Mt-St-Hilaire, Pectolite could be confused with Makatite. The major distinguishing feature is the fluorescence. While not all makatite fluoreseces, when it does it is moderate to strong blueish white or very pale greenish SW (and sometimes LW as well). This specimen fluoresces a weak pinkish LW – typical of MSH pectolite. (see http://www.mindat.org/photo-449516.html in bibliography).
(*)Data are not exhaustive and are limited to the most important localities for fluorescence
http://www.mindat.org/show.php?name=Makatite
http://webmineral.com/data/Makatite.shtml
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