Obsidian Tower

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Materia: Obsidian

Size: 2"-2.4"(50-60mm)

SKU
10% of profits are used to protect nature and endangered animals

Obsidian Properties

What is Obsidian?

Black obsidian resembles a solid piece of glass but is actually difficult to confuse with other rocks, especially when it has the distinctive characteristic of a conchoidal fracture. Black obsidian contains quartz porphyry crystals and feldspar crystals that can only be observed under a microscope.

Type

Volcanic glass

Chemical Formula

Non-uniform mixture 70–75% SiO2, with MgO, Fe3O4

Color

Deep black or blackish green

Optical Properties

Translucent

Luster

Vitreous.

Streak

White

Hardness

5-6.

Fracture

Conchoidal.

Other properties

Texture: Smooth; glassy.

Formation

Lava flows, dike and sill

Origins

Includes Italy, Mexico, Scotland, the Aeolian Islands, Hekla Volcano, Iceland, Arizona, Colorado, Texas, Utah, and Idaho in the United States, and the Cascade Volcanic Range and its associated lava beds that extend from Northern California to Washington State.

Every day, we see nature deteriorating at an alarming rate. The climate is changing faster than ever before, with serious consequences for all life on Earth – including us! Wanting to help, we created Roe Garden to help conserve and restore biodiversity, the web of life that supports all on Earth. By donating 10% of our profits to WWF, we’re able to make a real difference in the fight against climate change and its effects on our planet. What we didn’t know was just how much our little garden would grow. But we’re not giving up without a fight. With your help, we can make a difference!

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