One kind of jade is an amphibole similar to tremolite and actinolite in composition, while the other kind is a pyroxene (see below).
The fibrous variety of serpentine is the principal source of asbestos, an amphibole asbestos being less common.
This is referable to the variety of amphibole called crocidolite (q.
Byssolite or asbestoid is a blue or green fibrous amphibolefrom Dauphiny.
In the later stages of alteration the amphibole becomes compact and well crystallized; the rocks consist of green hornblende and plagioclase felspar, and are then generally known as epidiorites or amphibolites.
Frequently the material is interlaminated with a rhombic pyroxene (bronzite) or with an amphibole (smaragdite or uralite), the latter being an alteration product of the diallage.
I did not observe this mixture of amphibolein the granite of the littoral chain of Venezuela except at the summit of the Silla of Caracas.
Mica-slate, chloritic slate and the rocks of slaty amphibole contain magnetic sand in the tropical regions of Venezuela, as in the most northern regions of Europe.
Pseudomorphs ofamphibole after pyroxene are known as uralite.
Amphibole is a constituent of many crystalline rocks, as syenite, diorite, most varieties of trachyte, etc.
Amphibole is in general very rare at Teneriffe, not only in the modern lithoid lavas, but also in the ancient basalts, as has been observed by M.
I have found in it neither amphibole nor pyroxene, but some small white points, which seem to be feldspar.
These lavas, destitute of amphibole and mica, are of a blackish brown, often varying to the deepest olive green.
Amphibole and Pyroxene Group differ somewhat in their crystallisation form, though they all belong to the monoclinic system.
Amphibole is a general name for all the different varieties of Hornblende, Actinolite, Tremolite, etc.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "amphibole" in a variety of sentences. We hope that you will now be able to make sentences using this word.
