are for order, ore for suborder.

ase for rang, ose for subrang.

ate for grad, ote for subgrad.

This may be illustrated as follows:

Class I. persalane, all rocks extremely salic.

Order 4. britannare, feldspar dominant over quartz, quardofelic. Many rocks of granitic composition whether crystalline or glassy.

Rang 1. liparase, peralkalic, rocks in which the potential feldspars are extremely alkalic, orthoclase, or albite.

Subrang 2. Omeose, dopotassic, rocks in which the extremely alkali feldspars are dominantly potassic, orthoclase, with subordinate albite. Examples of omeose are: granite from Omeo, Victoria, Australia, and rhyolite from Silver Cliff, Colorado.

The presence of distinctive minerals not indicated in the standard mineral composition of norm is expressed by qualifying the magmatic name by the name of the distinctive mineral; as, a hornblende-monzonose.

The precise texture of the rock is expressed by qualifying the magmatic name by a textural adjective; as, a grano-monzonose, a vitro-monzonose, a phyro-monzonose, etc.