TABLE I.

Anhydrous Silicates.
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Fus. alone and with NaC.

Mineral.                  Formula.
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I.
a.  Axinite      ([.Ca][.Mg])^{3}([...B][...Si])^{3} +
([...Al=][...Fe=][...Mn=])^{2}([...Si][...B])   Int. 
Elaolite     ([.K][.Na])^{3}[...Si] + 3[...Al=][...Si]         Int. 
Garnet       [.R]^{3}[...Si] + [.R=][...Si]
Oligoclase   [.Na][...Si] + [...Al=][...Si]^{2}
Scapolite    ([.Ca][.Na])^{3}[...Si]^{2} + 2[...Al=][...Si]    Int. 
Spodumene    ([.Li][.Na])^{3}[...Si]^{2} + 4[...Al=][...Si]^{2}Int.
b.  Asbestos     As Hornblende
to II. 
Augite       ([.Ca][.Mg][.Fe][.Mn])^{3}[...Si]^{2}             Int.
some var. 
Epidote      ([.Ca]Fe)^{3}[...Si] +                            Int.
to III.      2([...Al][...Fe][...Mn])[...Si]
Hornblende   ([.Ca][.Mg][.Fe])^{4} + ([...Si][...Al=])^{3}     Int.
some var. 
Sodalite     [.Na]^{3}[...Si] + 3[...Al=][...Si] + NaCl        Int.
to III. 
Vesuvian     3([.Ca][.Mg])^{3}[...Si] +
2([...Al=][...Fe=])[...Si]                      Int.
c.  Biaxial Mica [.K][...Si] + 4([...Al=][...Fe=])[...Si]
to III. 
Hauyne       ([.K][.Na])^{3}[...Si] + 3[...Al=][...Si] +
[.Na][...Si]
Tourmaline   ([.R][...R=][...B])^{4}[...Si]^{3}                Int.
to V.

II.
  a.  Labradorite ([.Ca][.Na][.K])[...Si] +
                    ([...Al=][...Fe=])[...Si]
     Lepidolite (KNaL)F + ([...Al=][...Fe=])[...Si]^{2}? 
     Ryacolite [.K][...Si] + [...Al=][...Si]^{2}
     Albite [.Na][...Si] + [...Al=][...Si]^{3}
  b.  Augite [.R]^{3}[...Si]^{2}
        some var. 
     Actinolite ([.Ca][.Mg][.Fe])^{4}[...Si]^{3} Int. 
     Diopside ([.Ca][.Mg])^{3}[...Si]^{2} |
     Humboltilite 2([.Ca][.Mg][.Na][.K])[...Si] +
                    ([...Al=][...Fe=])[...Si]
     Sahlite As Augite
     Tremolite ([.Ca][.Mg])^{4}[...Si]^{3}
  c.  Pyrope ([.Ca][.Mg][.Fe])^{3}[...Si] + Al[...Si] +
                    m[...Cr]?

III.
  a.  Anorthite ([.Ca][.Mg][.Na][.K])^{3}[...Si] +
                    3([...Al=][...Fe=])[...Si]
     Nepheline ([.Na][.K][.Ca])^{2}[...Si] + 2[...Al=][...Si]
     Obsidian [...Si],[...Al=],[...Fe=],[.Fe],[.Ca][.Na][.K] Int. 
     Orthoclase ([.K][.Na])[...Si] + [...Al=][...Si]^{3}
     Petalite ([.Li][.Na])^{3}[...Si]^{4} + 4[...Al=][...Si]^{4}
     Pumice [...Si],[...Al=],[.Ca],[.K],[.Na],[.H] Int.
  b.  Gadolinite ([.Y][.Ce][.La][.Fe][.Ca])^{3}[...Si]
        to V.
     Nephrite ([.Ca][.Mg][.Fe])^{4}[...Si]^{3}?  Int. 
     Wollastonite [.Ca]^{3}[...Si]^{2} |
  c.  Iolite ([.Mg][.Fe])^{3}[...Si]^{2} + 3[...Al=][...Si]