reedmergnerite
Sign in to saveReedmergnerite is a borosilicate mineral named in honor of Frank S. Reed and John L. Mergner. It is approved by the International Mineralogical Association but was first described prior to the association's formation, first published in 1955. Although it is approved, it got grandfathered, meaning the name reedmergnerite is still believed to refer to a valid species. Reedmergnerite has a synthetic potassium analogue.
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Encyclopedic overview
3 sectionsContents
- Properties
- Environment and mining
- References
{{Infobox mineral|boxbgcolor=#fff89c|image=Earth-and-Man--Reedmergnerite.jpg|formula=NaBSi3O8| IMAsymbol = Rm|strunz=9.FA.35|system=Triclinic|dana=76.1.4.1|class=Pinacoidal H-M Symbol: |symmetry=C|unit cell=587.34|molweight=246.05|color=Colorless to yellow-orange, salmon-orange|cleavage=Perfect on {001}|mohs=6 – 6.5|luster=Vitreous|opticalprop=Biaxial (−)|refractive=nα = 1.554 nβ = 1.565 nγ = 1.573|birefringence=0.019|2V=80°|dispersion=None|streak=White|density=2.776|diaphaneity=Transparent, translucent|impurities=Ti, Al, Fe, Mg, Ca, Ba, K, F, H2O, P}}
Reedmergnerite is a borosilicate mineral named in honor of Frank S. Reed and John L. Mergner. It is approved by the International Mineralogical Association but was first described prior to the association's formation, first published in 1955. Although it is approved, it got grandfathered, meaning the name reedmergnerite is still believed to refer to a valid species. Reedmergnerite has a synthetic potassium analogue.
Excerpted from Wikipedia’s “reedmergnerite” article, available under the CC BY-SA 4.0 licence.