RHODONITE  , a member of the See also:

• PYROXENE

pyroxene See also:

• GROUP

group of minerals, consisting of See also:

• MANGANESE (symbol Mn; atomic weight, 54.93 (0=16)], a metallic chemical element. Its dioxide (pyrolusite)

manganese metasilicate, MnSiO3, and crystallizing in the anorthic See also:

• SYSTEM

system . It commonly occurs as cleavable to compact masses with a See also:

• ROSE
• ROSE (Rosa)
• ROSE, GEORGE (1744-1818)
• ROSE, HUGH JAMES (1795—1838)
• ROSE, WILLIAM STEWART (1775-1843)

rose-red See also:

• COLOUR (Lat. color, connected with celare, to hide, the root meaning, therefore, being that of a covering)

colour; hence the name, from the See also:

• GREEK
• GREEK, ETRUSCAN AND

Greek 1 YSov (a rose) . Crystals often have a thick See also:

• TABULAR

tabular 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; there are perfect cleavages parallel to the See also:

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

prism faces with 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 87° 312' . The hardness is 52-627 and the specific gravity 3.4-3.68 . The manganese is often partly replaced by See also:

• IRON [symbol Fe, atomic weight 55.85 (0=16)]

iron and See also:

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

calcium, which may sometimes be See also:

• PRESENT

present in considerable amounts; a greyish-See also:

• BROWN
• BROWN, CHARLES BROCKDEN (1771-181o)
• BROWN, FORD MADOX (1821-1893)
• BROWN, FRANCIS (1849- )
• BROWN, GEORGE (1818-188o)
• BROWN, HENRY KIRKE (1814-1886)
• BROWN, JACOB (1775–1828)
• BROWN, JOHN (1715–1766)
• BROWN, JOHN (1722-1787)
• BROWN, JOHN (1735–1788)
• BROWN, JOHN (1784–1858)
• BROWN, JOHN (1800-1859)
• BROWN, JOHN (1810—1882)
• BROWN, JOHN GEORGE (1831— )
• BROWN, ROBERT (1773-1858)
• BROWN, SAMUEL MORISON (1817—1856)
• BROWN, SIR GEORGE (1790-1865)
• BROWN, SIR JOHN (1816-1896)
• BROWN, SIR WILLIAM, BART
• BROWN, THOMAS (1663-1704)
• BROWN, THOMAS (1778-1820)
• BROWN, THOMAS EDWARD (1830-1897)
• BROWN, WILLIAM LAURENCE (1755–1830)

brown variety containing as much as 20% of calcium See also:

• OXIDE

oxide is called " bustamite " ; " fowlerite " is a zinciferous variety containing 7% of See also:

• ZINC

zinc oxide . Rhodonite is a See also:

• MINERAL

mineral liable to alteration, with the formation of manganese carbonate, hydrous silicate or oxides . The compact material, which is cut and polished for ornamental purposes, is often marked in a striking manner by See also:

• VEINS

veins and patches of these See also:

• BLACK
• BLACK, ADAM (1784-1874)
• BLACK, JEREMIAH SULLIVAN (1810–1883)
• BLACK, WILLIAM (1841-1898)

black alteration products . At Syedelnikova, near See also:

• EKATERINBURG

Ekaterinburg in the Urals, compact material of a See also:

• GOOD, JOHN MASON (1764-1827)

good colour occurs in a See also:

• CLAY (from O. Eng. claeg, a word common in various forms to Teutonic languages, cf. Ger. Klei)
• CLAY, CASSIUS MARCELLUS (1810-1903)
• CLAY, CHARLES (1801–1893)
• CLAY, FREDERIC (1838–1889)
• CLAY, HENRY (1777–1852)

clay-See also:

• SLATE (properly CLAY SLATE; in M. Eng. slat or sclat, from O. Fr. esclat, a small piece of wood used as a tile; esclater, to break into pieces, whence modern Fr. eclat, the root being seen also in Ger. schleissen, to split)

slate and is extensively quarried: boulders of similar material found at Cummington ,in See also:

• MASSACHUSETTS (an Indian name, originally applied to a tribe of Indians)

Massachusetts (" cummingtonite f7) have also been worked as an ornamental See also:

• STONE
• STONE (0. Eng. shin; the word is common to Teutonic languages, cf. Ger. Stein, Du. steen, Dan. and Swed. sten; the root is also seen in Gr. aria, pebble)
• STONE, CHARLES POMEROY (1824-1887)
• STONE, EDWARD JAMES (1831-1897)
• STONE, FRANK (1800-1859)
• STONE, GEORGE (1708—1764)
• STONE, LUCY [BLACKWELL] (1818-1893)
• STONE, MARCUS (184o— )
• STONE, NICHOLAS (1586-1647)

stone . In the iron and manganese mines at Pajsberg near Filipstadt and Langban in Vermland, See also:

• SWEDEN
• SWEDEN [Sverige]
• SWEDEN, NORWAY AND

Sweden, small brilliant and translucent crystals (" pajsbergite ") and cleavage masses occur . Fowlerite occurs as large, rough crystals, somewhat resembling See also:

• PINK

pink See also:

• FELSPAR, or FELDSPAR

felspar, with See also:

• FRANKLINITE

franklinite and zinc ores in granular See also:

• LIMESTONE

limestone at See also:

• FRANKLIN
• FRANKLIN, BENJAMIN (1706-1790)
• FRANKLIN, SIR JOHN (1786-1847)
• FRANKLIN, WILLIAM BUEL (1823-1903)

Franklin See also:

• FURNACE

Furnace in New See also:

• JERSEY
• JERSEY, EARLS OF

Jersey .