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Obsidian
Obsidian

Andesite
Andesite



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Obsidian
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Andesite

Obsidian and Andesite Types and Facts

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Types

Types

Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian
Icelandite

Features

Blocks negativity, Helps to protect against depression
Generally rough to touch, High silica content, Is one of the oldest rock

Archaeological Significance

Monuments

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Famous Monuments

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Middle of the Earth in Ecuador

Sculpture

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Famous Sculptures

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Pictographs

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Petroglyphs

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Figurines

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Fossils

Absent
Absent

Types of Obsidian and Andesite

Some rocks according to their use or texture are classified into different types. Know more about Obsidian Texture and Andesite Texture. Types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas the types of Andesite are Icelandite.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. Obsidian and Andesite were for creating 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. Obsidian and Andesite were for creating petroglyphs.