Asked By: Philip Alexander Date: created: Nov 03 2021

What is obsidian made of

Answered By: Richard Cook Date: created: Nov 05 2021

Though obsidian is usually dark in color similar to mafic rocks such as basalt, obsidian’s composition is extremely felsic. Obsidian consists mainly of SiO2 (silicon dioxide), usually 70% or more. Crystalline rocks with obsidian’s composition include granite and rhyolite.

Asked By: Alan Wright Date: created: Aug 15 2022

What type of volcano produces Obsidian

Answered By: Herbert Harris Date: created: Aug 18 2022

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.

Asked By: Justin Peterson Date: created: Apr 17 2022

Is Obsidian a mineral Why or why not

Answered By: Richard Gonzales Date: created: Apr 19 2022

“Obsidian is mineral-like, but not a true mineral because as a glass it is not crystalline; in addition, its composition is too complex to comprise a single mineral. It is sometimes classified as a mineraloid. Crystalline rocks with obsidian’s composition include granite and rhyolite.

Asked By: Raymond Kelly Date: created: Feb 18 2022

What makes obsidian black

Answered By: Adam Hughes Date: created: Feb 19 2022

Obsidian is usually black. This color is caused by minute inclusions and tiny crystals in the glass. Red color is caused by the same stuff that gives red color to weathered basalt, desert sand and K-feldspar. Obsidian is usually dark and its surface is shiny.

Asked By: Henry Watson Date: created: Apr 19 2022

Does Obsidian break easily

Answered By: Louis Allen Date: created: Apr 21 2022

Uses of Obsidian as a Cutting Tool

The conchoidal fracture of obsidian causes it to break into pieces with curved surfaces. This type of fracturing can produce rock fragments with very sharp edges. The easy-to-recognize rock became one of the first targets of organized “mining.”

Asked By: Jaden Green Date: created: May 15 2022

Is black obsidian magnetic

Answered By: Harold Foster Date: created: May 15 2022

Black Gems: Opaque black stones such as black Tourmaline (Shorl), black Garnet (Melanite), black Star Diopside, black Obsidian, Psilomelane and black aggregate stones are very magnetic because of high iron and/or manganese content, and will often be picked up or dragged by an N52 magnet.

Asked By: Daniel Cooper Date: created: Feb 19 2022

Is Obsidian magnetic

Answered By: Juan Diaz Date: created: Feb 20 2022

By nature, obsidian is dark coloured because of the presence of an extremely fine distribution of magnetite and/or hematite. A slight increase in the amount of either could be enough to draw a magnet, although as Donald stated, those neodimium magnets are strong little animals..

Asked By: Aidan Clark Date: created: Mar 23 2022

How can you tell if a rock is obsidian

Answered By: Walter Long Date: created: Mar 24 2022

The jet black color most closely associated with obsidian is usually caused by many microscopic rock and mineral particles. Observe the visual effects of small gas bubbles in the obsidian. If the bubbles were stretched almost flat, it can cause the obsidian to have a gold or silver sheen.

Asked By: Hayden Price Date: created: Aug 02 2021

What is Obsidian good for

Answered By: Jackson Miller Date: created: Aug 03 2021

Black Obsidian Stone is a powerful cleanser of psychic smog created within your aura, and is a strong psychic protection stone. This stone has powerful metaphysical properties that will help to shield you against negativity. The energy of these stones may stimulate the gift of prophesy.

Asked By: Bruce Coleman Date: created: Mar 14 2022

What minerals are in black obsidian

Answered By: Martin Gonzalez Date: created: Mar 15 2022

Abundant, microscopic crystals of minerals like magnetite, hornblende, pyroxene, plagioclase and biotite, combined with tiny fragments of rock, likely produce the jet-black varieties of obsidian.

Asked By: Gilbert Perry Date: created: May 26 2022

Is Obsidian worth anything

Answered By: Andrew Parker Date: created: May 29 2022

Obsidian is a natural, volcanic glass. It is a common mineral and its most usual colour is black. Because it is a glass, it is difficult to distinguish obsidian from man-made glass. However, I would estimate the wholesale value of unprocessed, rough black obsidian at somewhere between $5 and $10 per kilogram.

Asked By: Henry Edwards Date: created: Jul 26 2021

Is Obsidian stronger than diamond

Answered By: Miles Bell Date: created: Jul 29 2021

Surprising Things about Obsidian

Surprisingly, the edge of a piece of obsidian is superior to that of a surgeon’s steel scalpel. It is 3 times sharper than diamond and between 500-1000 times sharper than a razor or a surgeon’s steel blade resulting in easier incisions and fewer microscopic ragged tissue cuts.

Asked By: Dennis Torres Date: created: Dec 24 2021

How is obsidian used today

Answered By: Richard Bailey Date: created: Dec 25 2021

Today, obsidian still has important uses. Its smooth, glassy texture makes it popular as a raw material used to make jewelry. From reflective beads to interesting gemstones, obsidian makes beautiful jewelry. Unfortunately, it is not very hard, which makes it easy to scratch and break.

Asked By: Leonars Reed Date: created: Aug 25 2022

Why is obsidian so hard

Answered By: Cody Johnson Date: created: Aug 26 2022

Obsidian forms sharp edges because of its chemical structure. It’s incredibly hard, and unlike crystalline minerals, which tend to cleave along their structural lines, obsidian has no crystalline structure.

Asked By: Dennis Russell Date: created: Mar 27 2022

How much does Obsidian cost

Answered By: Gabriel Price Date: created: Mar 28 2022

Depends on the industrial grade and the sizes of the pieces you are getting. In a generic sense $2-$3/lb is common. It starts to get more expensive when you get the harder types like some of the rarer brown obsidian that I have. That costs a little more for a 2–5 lb chunk.

Asked By: Adrian Foster Date: created: Dec 22 2021

Would Obsidian make a good sword

Answered By: Aidan Henderson Date: created: Dec 24 2021

Natural obsidian is a pretty terrible substance to make a durable weapon with, but there are other “obsidian like” materials that could work. “Obsidian like” being glass with impurities “It’s not the strongest material ever made, but it’s certainly one of the best with a combination of strength and toughness.”

Asked By: Gavin Flores Date: created: Sep 05 2022

Is Obsidian a precious stone

Answered By: Aaron Cox Date: created: Sep 08 2022

Obsidian is naturally occurring volcanic glass which has been used as a gemstone since antiquity. Obsidian forms when lava cools and whilst it is mineral-like, it is not considered to be a true mineral because its composition is too complex and it does not have a crystalline structure.

Asked By: Sean Torres Date: created: Jun 02 2022

Is Obsidian durable

Answered By: Cole Gray Date: created: Jun 05 2022

It is very durable. When cut properly, Obsidian blades can become paper-thin and be used as arrowheads and surgical tools. Obsidian is not a mineral, because it has certain “rockish” properties, but is sometimes called a mineroid (Half-half).

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