| H. |Sp.|Action of |Action of |Color.|Appearance.
| |Gr.|Blowpipe. |hot acid. | |
----------+-----+---+-----------------+-----------------+------+---------------
| | | | | |
Calcite | 3 |2.6|Infusible, |Soluble with |White |Like Fig.
| | |but glows |effervescence | |3 and 4.
| | | | | |
Natrolite | 5 |2.2|Readily fused |Forms a jelly | do. |Like Fig 5.
| | |to clear globule | | |
| | | | | |
Pectolite | 4 |2.5| do. | do. do. | do. |Divergent
| | | | | |fibers, Fig. 6.
| | | | | |
Datholite | 5 |3.0|Intumesces, fused|Forms a jelly |Color-|Small, nearly
| | |to clear globule,| |less |spherical, etc.
| | |gives green flame| |white |
| | | | | |
Apopholite| 5 |2.5|Difficult, fused |Partly soluble |Tinted|Like Fig. 7.
| | |to opaque globule|in nitric acid | |
| | | | | |
Phrenite | 6 |2.
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