meyerhofferiten.
/ˌmʌɪəˈhɒfərʌɪt/, U.S. /ˌmaɪərˈhɔfəˌraɪt/, /ˌmaɪərˈhɑfəˌraɪt/ Mineralogy.
A hydrated calcium borate crystallizing in the triclinic system, occurring chiefly as colourless to white prismatic crystals or fibrous masses as an alteration product of inyoite.
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the world > the earth > minerals > types of mineral > borates > [noun] > calcium borate
hayesine1844
priceite1873
colemanite1884
pandermite1885
inyoite1914
meyerhofferite1914
ginorite1934
tertschite1953
nifontovite1961
nobleite1961
pentahydroborite1962
uralborite1962
1914 W. T. Schaller in Jrnl. Washington Acad. Sci. 4 355 Inyolite and Meyerhofferite, two new Calcium Borates from Death Valley, Inyo County, California, belong to the Colemanite series.
1951 C. Palache et al. Dana's Syst. Mineral. (ed. 7) II. 357 The meyerhofferite occurs as pseudomorphs after inyoite with a fibrous internal structure, as small transparent colorless crystals on the surface of these pseudomorphs, and as masses of interlaced glassy crystals or fibrous aggregates embedded in clay.
1967 E. L. Muetterties Chem. Boron & its Compounds iii. 188 The binary salt minerals, in the system CaO.MgO.B2O3.H2O (hydroboracite and inderborite) are probable derivatives of the colemanite-meyerhofferite trimer.
1977 Mineral. Abstr. 28 280/2 Tincalconite and meyerhofferite are thought to be metastable, and unsuccessful attempts to bring about their dehydration to kernite and colemanite are reported.
1989 Geochim. et Cosmochim. Acta 53 3192/1 There should be little difference in δ11B among..colemanite, inyoite, and meyerhofferite.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1914