One of the more distinctive physical properties is its hardness (H=4). Sometimes, alunite is a rock-forming mineral (see below). A ~monomineralic alunite rock is called alumstone . Most alunite forms as sulfuric acid (H2SO4) breaks potassium-bearing rocks in …

Alunite. Comments: Octahedral clear to tan tinted crystals of alunite. Location: Marysvale, Piute County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species. Alunite Crystallography. Axial Ratios: a:c = 1:2.49354.

Alunite, a widespread rock-forming sulfate mineral that occupies pockets or seams in volcanic rocks such as rhyolites, trachytes, and andesites, where it presumably formed through their chemical reaction with escaping sulfurous vapors.

 — What are the Properties of Alunite? Alunite has unique properties that make it a subject of interest in mineralogy and geology. Thermal Properties: When heated, alunite undergoes thermal expansion and dehydroxylation, losing its hydroxide ions and collapsing its crystal structure.

Alunite is a sulfate mineral with the chemical formula KAl3 (SO4)2 (OH)6, characterized by its unique crystal structure and composition. It forms through the alteration of aluminum-rich rocks in acidic environments, particularly in volcanic regions.

 — Alunite Properties. Also known as Angel Wing, Alunite is often found in a combination of colors, usually in pairing with red. The stone may be red with white streaks all over, or contain a pairing of red with light, creamy pink or yellow blotches of color spread across the stone in varying amounts, depending on the minerals.

 — The properties of the stone are used in dentistry, in particular, for the treatment of gum disease and their prevention. Alunite is an effective hemostatic and astringent, wounds after stone treatment heal faster.

Stones A. Alunite Meanings Properties Powers & Uses. Balances Yin-Yang Energy. By Liz Oakes. Alunite is known as stone that is balancing to the yin and yang energies. It has a good grounding and stabilizing energy that helps …

 — Alunite embodies stability and equilibrium, resonating with the Yin-Yang energy to foster harmony in one's life. If you're seeking respite from the world's chaos, exploring Alunite might offer a pathway to introduce organization and …

Alunite is formed between 15°C (59°F) and 400°C (752°F) by the action of sulfate generated from pyrite or solfataric action on aluminous rocks, along with silicification and kaolinitization. It is closely associated with quartz, gypsum, pyrite, …