Buddingtonite

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

In collections

Nobody has pulled it yet.

What Wikipedia says

Buddingtonite is an ammonium feldspar with formula: NH4AlSi3O8 (note: some sources add 0.5H2O to the formula). It forms by hydrothermal alteration of primary feldspar minerals. It is an indicator of possible gold and silver deposits, as they can become concentrated by hydrothermal processes.

Excerpt from the Wikipedia article “Buddingtonite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: David Hospital, CC BY 4.0, via Wikimedia Commons.