BARYTOCALCITE  , a rare See also:

• MINERAL

mineral found only at See also:

• ALSTON
• ALSTON, CHARLES (1683-176o)

Alston See also:

• MOOR

Moor in See also:

• CUMBERLAND
• CUMBERLAND, DUKES AND EARLS OF
• CUMBERLAND, RICHARD (1632-1718)
• CUMBERLAND, RICHARD (1732-1811)
• CUMBERLAND, WILLIAM AUGUSTUS

Cumberland, where it occurs as diverging See also:

• GROUPS
• GROUPS, THEORY

groups of See also:

• WHITE
• WHITE, ANDREW DICKSON (1832– )
• WHITE, GILBERT (1720–1793)
• WHITE, HENRY KIRKE (1785-1806)
• WHITE, HUGH LAWSON (1773-1840)
• WHITE, JOSEPH BLANCO (1775-1841)
• WHITE, RICHARD GRANT (1822-1885)
• WHITE, ROBERT (1645-1704)
• WHITE, SIR GEORGE STUART (1835– )
• WHITE, SIR THOMAS (1492-1567)
• WHITE, SIR WILLIAM ARTHUR (1824--1891)
• WHITE, SIR WILLIAM HENRY (1845– )
• WHITE, THOMAS (1628-1698)
• WHITE, THOMAS (c. 1550-1624)

white transparent crystals lining cavities in the See also:

• MOUNTAIN (0. Fr. montaigne; popular Lat. montanea, an adjectival form from the classical mons, montis, whence Eng. " mount," a form usually used along with the name of an individual mountain, e.g. Mt Everest)
• MOUNTAIN, THE (La Montagne)

Mountain See also:

• LIMESTONE

Limestone . The crystals belong to the See also:

• MONOCLINIC

monoclinic See also:

• SYSTEM

system and are usually prismatic or blade-shaped 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 . The hardness is 4, and the sp. gr . 3.65 . There are perfect cleavages parallel to the See also:

• PRISM (Gr. rrpivµa, properly a thing sawn, Irpii"ety, to saw)

prism faces inclined at an See also:

• ANGLE (from the Lat. angulus, a corner, a diminutive, of which the primitive form, angus, does not occur in Latin; cognate are the Lat. angere, to compress into a bend or to strangle, and the Gr. ayKOS, a bend; both connected with the Aryan root ank-, to

angle of 73° 6', and a less perfect cleavage parallel to the basal See also:

• PLANE

plane, the angle between which and the prism faces is 770 6'; the angles between these three cleavages thus approximate to the angles (740 55') between the three cleavages of See also:

• CALCITE

calcite, and there are other points of superficial resemblance between these two minerals . Chemically, barytocalcite is a See also:

• DOUBLE
• DOUBLE (from the Mid. Eng. duble, the form which gives the present pronunciation, through the Old Er. duble, from Lat. duplus, twice as much)

double See also:

• SALT (a common Teutonic word, cf. Dutch zout, Ger. Salz, Scand. salt; cognate with Gr. &Xs, Lat. sal)
• SALT, SIR TITUS, BART

salt of See also:

• BARIUM (symbol Ba, atomic weight 137'37 [0=16])

barium and See also:

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

calcium See also:

• CARBONATES

carbonates, BaCa(CO3)2, thus differing from the orthorhombic See also:

• BROMLITE

bromlite (q.v.) which is an isomorphous mixture of the two carbonates . (L . J .