Hazenite
A variety of Minerals
What is Hazenite?
Hazenite is a hydrous phosphate mineral with chemical formula of KNaMg2(PO4)2·14H2O, therefore a hydrous alkali magnesium phosphate. It is a member of the struvite group. It was first described for an occurrence adjacent to Mono Lake, California, and named after Robert M. Hazen of the Carnegie Institute. It was approved as a new mineral on February 28, 2008 by the Commission on New Minerals of the International Mineralogical Association. It occurs as crystal clusters associated with decomposed cyanobacteria remnants on calcite or aragonite. It is precipitated by microbes when the lake has been dry for so long that phosphorus levels build up, poisoning the microbes. They dispose of the excess phosphorus by excreting hazenite crystals. The crystals disappear when it rains or the lake level rises.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hazenite 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.
Hazenite Localities Map
See where Hazenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- colourless
- Hardness (Mohs)
- 2 - 2.5
- Density
- 1.88 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- KNaMg2(PO4)2 · 14H2O
- Elements
- H, K, Mg, Na, O, P
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Hazenite FAQs
How do I identify Hazenite?
Hazenite can be identified by its hardness of 2 - 2.5 on the Mohs scale, colourless color. Look for these key characteristics when examining specimens.
What color is Hazenite?
Hazenite typically appears in colourless. Color can vary depending on impurities and formation conditions.
How hard is Hazenite?
Hazenite has a hardness of 2 - 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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