from The Century Dictionary.
- noun See
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Alternative spelling of
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Upon this is a layer of datholite in the form of a crystalline plate, and over or above this, either in the basalt or hanging down into cavities in the sandstone, are the crystals or geodes of datholite.
This is a long known and somewhat noted locality for datholite, and no difficulty need be experienced in obtaining plenty of fair specimens.
The datholite, as in other localities, consists of groups of small colorless crystals.
Boric acid is also a constituent of certain silicates, such as tourmaline, axinite, and datholite.