Oil shale and Obsidian Types and Facts

Oil shale

Obsidian

Add ⊕

1 Types

1.1 Types

Carbonate-rich Shale, Siliceous Shale and Cannel Shale

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

1.2 Features

Easily splits into thin plates, Generally rough to touch, Is one of the oldest rock, Very fine grained rock

Blocks negativity, Helps to protect against depression

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

1.3.2 Famous Monuments

Not Applicable

1.3.3 Sculpture

Not Yet Used

1.3.4 Famous Sculptures

Not Applicable

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Not Yet Used

1.4 Fossils

Present

Absent

Types of Oil shale and Obsidian

Some rocks according to their use or texture are classified into different types. Know more about Oil shale Texture and Obsidian Texture. Types of Oil shale are Carbonate-rich Shale, Siliceous Shale and Cannel Shale whereas the types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian.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. Oil shale was not used to create pictographs whereas Obsidian is 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. Oil shale was not used to create petroglyphs whereas Obsidian was used to create petroglyphs.