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DANBURITE

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Originally appearing in Volume V07, Page 793 of the 1911 Encyclopedia Britannica.

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DANBURITE , a rare See also:

MINERAL

mineral See also:

SPECIES

species consisting of See also:

CALCIUM [symbol Ca, atomic weight 40.0 (o= x6)]

calcium and See also:

BORON (symbol B, atomic weight I I)

boron orthosilicate, CaB2(SiO4)2, crystallizing in the orthorhombic See also:

SYSTEM

system. It was discovered by C. -U. Shepard in 1839 at See also:

DANBURY

Danbury, See also:

CONNECTICUT

Connecticut, U.S.A., and named by him after this locality. The crystals are prismatic in See also:

HABIT (through the French from Lat. habitus, from habere, to have, hold, or, in a reflective sense, to be in a certain condition; in many of the English senses the French use habitude, not habit)

habit, and closely resemble See also:

TOPAZ

topaz in See also:

FORM (Lat. forma)

form and interfacial angles. There is an imperfect cleavage parallel to the basal See also:

PLANE

plane. Crystals are transparent to translucent, and colourless to See also:

PALE (through Fr. pal, from Lat. palms, a stake, for paglus, from the stem pag- of pangere, to fix; " pole " is from the same original source)

pale yellow; hardness 7; specific gravity 3•o. At Danbury the mineral occurs with See also:

MICROCLINE

microcline and See also:

OLIGOCLASE

oligoclase embedded in See also:

DOLOMITE

dolomite. Large crystals, reaching 4 in. in length, have been found with See also:

CALCITE

calcite in See also:

VEINS

veins traversing See also:

GRANITE (adapted from the Ital. granite, grained; Lat. granum, grain)

granite at See also:

Russell in St See also:

Lawrence See also:

COUNTY (through Norm. Fr. comae, cf. O. Fr. cunte, conk', Mod. Fr. comae, from Lat. comitatus, cf. Ital. comitato, Prov. comtat; see COUNT)

county, New See also:

York. Smaller but well-See also:

DEVELOPED

developed crystals have been found on See also:

GNEISS

gneiss at Mt. Scopi and Petersthal (the valley of the See also:

VALS (Vals-les-Bains)

Vals See also:

RHINE (Lat. Rhenus, Ger. Rhein, Fr. Rhin, Dutch Rhyn, or Rijn)

Rhine) in See also:

SWITZERLAND

Switzerland. Splendid crystals have recently been obtained from See also:

JAPAN

End of Article: DANBURITE

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