How do I identify Lavendulan?

Lavendulan can be identified by its hardness of 2.5 on the Mohs scale, Turquoise-blue color, Vitreous, Waxy luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.

What color is Lavendulan?

Lavendulan typically appears in Turquoise-blue, greenish blue, pale blue. Color can vary depending on impurities and formation conditions.

How hard is Lavendulan?

Lavendulan has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

Lavendulan

A variety of Lavendulan Group

Rare

Lavendulan specimen - rock identification

What is Lavendulan?

Lavendulan is an uncommon mineral known for its electric blue translucent color. It is a secondary mineral sometimes found in copper-arsenic deposits. Lavendulan may be mistaken for mahnertite or slavkovite superficially. It also belongs to the Lavendulan group, which contains sampleite and zdenekite as well.

Lavendulan Market Value Calculator

Estimate the market value of Lavendulan using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Lavendulan Localities Map

See where Lavendulan is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview

North ZoneCentral RidgeSouth Basin

Key Characteristics

Characteristics of Lavendulan

Lavendulan is a blue or greenish blue translucent mineral, with a vitreous to waxy luster, satiny in aggregates, and a light blue streak. It occurs as thin botryoidal crusts of minute radiating fibers or as thin rectangular, pseudo-orthorhombic plates, with cleavage in three directions, nearly perfect perpendicular to the b crystal axis, and distinct perpendicular to the a and c axes. Twinning is common. The mineral is brittle, with an uneven fracture. It is quite soft, with hardness 2.5, between gypsum and calcite, and relatively dense; its specific gravity is 3.84, close to that of topaz, and much denser than quartz (specific gravity 2.5 to 2.7). It is easily soluble in hydrochloric acid.

Formation of Lavendulan

At the type locality, lavendulan occurs associated with erythrite and a cobalt molybdate originally called pateraite, but now discredited. At San Juan, Chile, it is associated with erythrite, cuprite, malachite and cobaltian wad. At the Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France, associated minerals are chalcophyllite, cyanotrichite, parnauite, mansfieldite, olivenite, tennantite, covellite, chalcanthite, antlerite, brochantite and geminite. It also occurs at Tsumeb, Namibia, associated with cuprian adamite, conichalcite, o’danielite, tsumcorite, fahleite, quartz, calcite and gypsum.

Health & Safety Information

⚠️Harm Reason: Lavendulan dust is toxic because it contains heavy metals Arsenic, Copper.
⚠️Heavy Metal: Arsenic, Copper
⚠️How to prevent the risks of Lavendulan?