carnalliten.
Mineralogy.
A hydrous chloride of potassium and magnesium, an important source of potash, occurring as a milk-white mineral (but often reddish from admixture of oxide of iron and organic matter) in the salt mines in Germany, the western United States, Russia, and elsewhere.
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the world > the earth > minerals > types of mineral > halides > [noun] > fluorite group > others
Blue John1768
tachhydrite1866
carnallite1876
nocerite1882
terlinguaite1900
jarlite1933
1876 D. Page Adv. Text-bk. Geol. (ed. 6) xvi. 305 A series of saliferous strata..carnallite, kieserite, etc.
1882 Playfair in Macmillan's Mag. 45 335 Potash..now found in the minerals carnallit and kainit, in such inexhaustible quantity.
This entry has not yet been fully updated (first published 1888; most recently modified version published online June 2019).
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n.1876