2[.H] Int.
Prehnite [.Ca]^{2}[...Si] + [...Al=][...Si] + [.H] Int.
Scolezite [.Ca][...Si] + [...Al=][...Si] + 3[.H] Int.
Thomsonite ([.Ca][.Na])^{3}[...Si] + 3[...Al=][...Si]
+ 7[.H] Int.
Datholite 2[.Ca]^{3}[...Si] + [...B]^{3}[...Si]^{2} + 3[.H] Int.
Heulandite [.Ca][...Si] + [...Al=][...Si]^{3} + 5[.H] Int.
Stilbite [.Ca][...Si] + [...Al=][...Si]^{3} + 6[.H] Int.
b. Okenite [.Ca]^{3}[...Si]^{4} + 6[.H] Int.
Pectolite ([.Ca][.Na])^{4}[...Si]^{3} + [.H] Int.
c. Saponite 2[.Mg]^{3}[...Si]^{2} + [...Al=][...Si]
+ 10 or 6[.H]
II.
a. Antrimolite 3([.Ca][.K])[...Si] + 5[...Al=][...Si] +
15[.H]
Harmatome [...Ba][...Si] + [...Al=]S^{2} + 5[.H]
b. Brevicite [.Na][...Si] + [...Al=][...Si] + 2[.H]
Orthite [.R]^{3}[...Si] + [...R=][...Si] + ([.H]?) Int.

III.
c. Pitchstone [...Si],[...Al=], Fe, [.Mg][.Na], [.K][.H]
Talc to V. [.Mg]^{6}[...Si]^{5} + 2[.H]
Chlorite 3([.Mg]Fe)^{3}[...Si] + ([...Al=]Fe)^{2}[...Si]
+ 9[.H]
Pinite [...Si],[...Al=],[.Fe],[.K],[.Mg],[.H]

IV.
a. Steatite [.Mg]^{6}[...Si]^{5} + 4[.H]
c. Gilbertite [...Si],[...Al=],[.Fe],[.Mg],[.H] Int.
Meerschaum [.Mg][...Si] + [.H] |
Serpentine [.Mg]^{9}[...Si]^{4} + 6[.H] |
V.
a. Gismondine ([.Ca][.K])^{2}[...Si] + 2[...Al=][...Si] + 9[.H]
________________________________________________________________________

TABLE II.

_______________________________________________________________________
|
Analcime | If transparent becomes white and opaque when heated,
| but on incipient fusion resumes its transparency and
| then fuses to a clear glass.
|
Andalusite | When powdered and treated with cobalt solution on
| charcoal, assumes a blue color.
|
Apophyllite | Fuses to a frothy white glass.
|
Axinite | Imparts a green color to the blowpipe flame, owing to
| the presence of boracic acid. This reaction is
| especially distinct, if the mineral be previously mixed
| with fluorspar and bisulphate of potassa.
|
Beryl |