order those
which afford characteristic reactions.

TABLE I.

Anhydrous Silicates.
________________________________________________________________________
Fus. alone and with NaC.

Mineral. Formula.
________________________________________________________________________
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]
O