Mushroom rhyolite rough from Arizona – cut face, close view

Mushroom rhyolite rough from Arizona – group of nodules

Mushroom rhyolite rough from Arizona – mushroom pattern, close up

Mushroom rhyolite rough from Arizona – nodule with cut face

Mushroom rhyolite rough from Arizona – pile, close view

Mushroom rhyolite rough from Arizona – pile of pieces

Mushroom rhyolite rough from Arizona – pieces beside a coin for scale

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Mushroom Rhyolite - Rough

Arizona, U.S.A.

Price per: Gram

Price:

$0.15 CAD

Quantity:

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Mohs Hardness 6.5
Mineral Families Silicates
UV Reactive Non Reactive
Treatments Natural/None

Locality: Arizona, U.S.A.

Description: Mushroom Rhyolite is found in several areas northwest of Phoenix, Arizona. The rock gets its name from the repeating gray pattern that sometimes looks like a mass of growing mushrooms. Due to the high silica content, rhyolite lava is very viscous. Some portions contain a reddish halo which surrounds the outside of the gray massive "thundereggs" providing a colorful contrast on the rock. When cut in half the mushroom looks like a burst within the rock formation.

Traditionally, mushroom rhyolite has been associated with harmony and creativity.

Chemical Composition: SiO₂ + K₂O + 70-75% silicon dioxide + Potassium Oxide

Grade: Lapidary Grade
Appearance: Opaque
Inclusions: Fractures

Approximate Size of 1 pc: 7cm x 6cm x 6cm
Approximate Weight of 1 pc: 420g

Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.

Mushroom Rhyolite - Rough

Specifications

Description

Mushroom Rhyolite - Rough

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