Nepheline Syenite and Amphibolite Types and Facts

Nepheline Syenite

Amphibolite

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1 Types

1.1 Types

Borolanite and Litchfieldite

Hornblendite

1.2 Features

Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock

Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

1.3 Archaeological Significance

1.3.1 Monuments

Used

1.3.2 Famous Monuments

Data Not Available

1.3.3 Sculpture

Used

1.3.4 Famous Sculptures

Data Not Available

1.3.5 Pictographs

Used

Not Used

1.3.6 Petroglyphs

Used

Not Used

1.3.7 Figurines

Used

1.4 Fossils

Absent

Types of Nepheline Syenite and Amphibolite

Some rocks according to their use or texture are classified into different types. Know more about Nepheline Syenite Texture and Amphibolite Texture. Types of Nepheline Syenite are Borolanite and Litchfieldite whereas the types of Amphibolite are Hornblendite.During historic times, some rocks depending on their hardness were used to create Pictographs and Petroglyphs. Rocks which are hard were generally not used. Pictographs are paintings or drawings that have been placed or created on the surface of rock. Nepheline Syenite was used to create pictographs whereas Amphibolite is not used to create pictographs. Petroglyph is an image which is carved into a rock. These are images created by removing part of a rock surface by incising, picking, carving or abrading, as a form of rock art. Nepheline Syenite was used to create petroglyphs whereas Amphibolite was not used to create petroglyphs.