Page:EB1911 - Volume 18.djvu/539

I.—NATIVE ELEMENTS.
1. Non-Metals.
	Diamond	C	C2
	(Bort, Carbonado)
	Graphite	C	R
	Sulphur	S	O
2. Semi-Metals.
$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}$	Arsenic	As	R
	Antimony	Sb	R
	Bismuth	Bi	R
3. Metals.
$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \ \end{matrix}}\right.}$	Gold	Au	C
	Silver	Ag	C
	Copper	Cu	C
	Platinum	Pt	C
II.—SULPHIDES, ARSENIDES, TELLURIDES, ETC.
1. Of the Semi-Metals.
	Realgar	AsS	M
$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Stibnite	Sb2S3	O
	Bismuthite	Bi2S3	O
	Tetradymite	Bi2Te2S	R
	Molybdenite	MoS2	R
2. Of the Metals.
A. Monosulphides, &c.
$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Argentite	Ag2S	C
	Galena	PbS	C
	Copper-glance	Cu2S	O
	Blende	ZnS	C2
	Cinnabar	HgS	R3
	Covellite	CuS	H
	Greenockite CdS	R2
$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}$	Millerite	R
	Niccolite NiAs	R
	Pyrrhotite	Fe11S12	R
B. Intermediate Division.
	Erubescite	Cu5FeS4	C
	Chalcopyrite	CuFeS2	T2
C. Disulphides, &c.
$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}$	Pyrites	FeS2	C3
	Smaltite	CoAs2	C3
	Cobaltite	CoAsS	C3
$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Marcasite	FeS2	O
	FeAsS	O
	Sylvanite	AuAgTe4	M
III.—SULPHO SALTS.
	Freieslebenite	(Pb,Ag2)Sb4S11
	Bournonite	PbCuSbS3	O
$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Pyrargyrite	Ag3SbS3	R2
	Prousite	Ag3AsS3	R2
	Tetrahedrite	Cu3SbS3	C2
	Stephanite	Ag5SbS4	O2
	Cu2FeSnS4	T2
	Argyrodite	Ag8GeS6	C
IV.—HALOIDS.
1. Anhydrous
	Salt	NaCl	C
	Sylvite	KCl	C4
. . .
V.—OXIDES.
. . .

. . .
. . .
Ilmenite^[1] FeTiO₃ R4
c. Intermediate Oxides.^[2]
Spinel MgAl₂O₄ C
Magnetite FeFe2O4 .... C
Franklinite (Fe, Zn, Mn)(Fe, Mn)gO4 C
Chromite (Fe, Mg)(Cr, Fe)2O4 C
Chrysoberyl BeAl2O4 .... O
(Alexandrite, Cymophane)
d. Dioxides
Cassiterite S11O2 T
Rutile TiO2 T
Anatase TiO2 T
Brookite TiO2 O
Pyrolusite MnO2 P
Pitchblende^[3] (U, Th)O₂ C
B. Hydrous Oxides.
Diaspore AlO(OH) O
Goethite FeO(OH) O
Manganite MnO(OH) .. O
Limonite Fe2O3.3H2O Amorphous
Bauxite . Al₂O₃.2H₂O?
Brucite Mg(OH)2 . R
Psilomelane xMnO2+yBaO-I-HQO Amorphous
(Wad)
VI.—OXYGEN SALTS.
I. Carbonates.
A. Anhydrous.
Calcite ... CaCO3 R
(Satin-spar)
Dolomite CaMg(CO3)2 R4
Ankerite Ca(Mg, Fe)(CO3)2 R
Magnesite MgCO3 R
Chalybite FeCO3 R
Rhodochrosite. MnCO3 R
Calamine . ZnCO3 R
Aragonite CaCO3 O
Alstonite (Ca, Ba)CO3 O
Witherite BaCO3 O
Strontianite SrCO3 O
Cerussite PbCO3 .. O
Barytocalcite CaBa(CO3)2 M
Parisite (CcF)2Ca(CO3)3 H
Phosgenite (PbCl)2CO3 T
B. Basic Carbonates.
Malachite Cu2(gH)2CO3 M
Azurite Cu3 H 2 CO3 2 M
2. Silicates.
A. Anhydrous Silicates.
a. Disilicates, R″Si1O5; Pol;/silicates, R"Si3Og
Petalite LiAl (Si2O5)z M
Orthoclase KAlSi3Og M
⁠(Moon-stone)
Microcline KAlS13O8 A
⁠(Amazon-stone)
Albite NaAlS1;, Og A
Oligoclase Ab6An1 to Ab3An1 A
⁠(Sun-stone)
Andesine Ab3An1 to Ab1An1 A
Labradorite Ab1An1 to Ab1An3 A
BytoWnite Ab1An3 to Ab1An6 A
Anorthite CaAl₂Si₂O₈
b Metasilicates, R″ SiO₃.
Leucite KAl(SiO₃₂ Pseudo-C
Pollux H₂Cs₄Al₄(SiO₃)₉ C
Enstatite MgSiO₃ . O
Bronzite (Mg, Fe)SiO3 O
Hypersthene (Fe, Mg)S1O3 O
Diopside CaMg(SiO3)2 .... M
Augite . 3 Ca(Mg, Fe) (SiO3)2 M
 (Diallage) § 1tPh(M§ éF5)§ Al, Fe)2SiO¢ M
Acmite a e”' i 32
Spodumene . LiAl(SiO3)2 . M
 (Hiddenite, Kunzite)
Jadeite NaAl(SiO3)2 M
Wollastonite CaSiO3 M
Rhoddnite MnSiO3 A
Tremolite .... CaMg3(SiO3)4 M
[Actmolite] . Ca(Mg, Fe)3(S1O3)4 M
⁠(Asbestos, Nephrite)
⁠Ca(Mg, Fe)₃(SiO₃)₄
Hornblende with NaAl(S1O3)¢ M
⁠and (Mg Fe) (Al, Fe)4(SiO5)2
Crocidolite gage FeSiO3  %
Beryl Be₃Al₂(SiO₃)₆
(Aquamarine, Emerald)
c. Intermediate.
Iolite .... H₂(Mg, Fe)₄Al₈Si₁₀O₃₇

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1. Often classed with the titanates.
2. Often classed as aluminates
3. Usually classed as a uranate