Ameghinite

A variety of Minerals

Ameghinite specimen

What is Ameghinite?

Ameghinite, Na[H4B3O7] or NaB3O3(OH)4, is a mineral found in Argentina. It is a soft mineral with a Mohs hardness of 2-3. Ameghinite has a monoclinic crystal system. It was first described in 1967 for an occurrence in the Tincalayu Mine, Salar Del Hombre Muerto, Salta, Argentina. It was named for Argentine geologist brothers, Carlos Ameghino (1865–1936) and Florentino Ameghino (1854–1911).

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Ameghinite before comparing listings or appraisals.

Size & Weight

Larger, intact specimens usually command higher prices.

Rarity & Demand

Scarce material or popular varieties sell at a premium.

Condition & Finish

Chips, repairs, and heavy wear lower value; clean prep helps.

Treatment & Provenance

Untreated specimens with documented locality are prized.

Applies to all rocks & minerals.

Ameghinite Localities Map

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

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Color
Colourless
Hardness (Mohs)
2 - 3

Chemical Properties

Chemical Formula
Na(H4B3O7)
Elements
B, H, Na, O
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Ameghinite FAQs

How do I identify Ameghinite?

Ameghinite can be identified by its hardness of 2 - 3 on the Mohs scale, Colourless color. Look for these key characteristics when examining specimens.

What color is Ameghinite?

Ameghinite typically appears in Colourless. Color can vary depending on impurities and formation conditions.

How hard is Ameghinite?

Ameghinite has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

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