Lulzacite
A variety of Minerals
What is Lulzacite?
Lulzacite is a strontium-containing phosphate mineral with the chemical formula Sr2Fe(Fe,Mg)2Al4(PO4)4(OH)10. The mineral was first described in 2000 from quartzite deposits (47°42′50″N 1°29′20″W / 47.71389°N 1.48889°W / 47.71389; -1.48889) at Saint-Aubin-des-Châteaux, Loire-Atlantique, France, and is named after Y. Lulzac, a French geologist who discovered the mineral. In this deposit, lulzacite occurs within quartz and siderite veinlets at quartzite–limestone contacts. Other minerals found in the veinlets include apatite, goyazite, and pyrite. Lulzacite crystallizes in the triclinic system with P1 space group. It is isostructural with jamesite (Pb2Zn(Fe,Zn)2Fe4(AsO4)4(OH)10).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Lulzacite 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.
Lulzacite Localities Map
See where Lulzacite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Greyish-green
- Hardness (Mohs)
- 5.5 - 6
- Density
- 3.58 g/cm³
Chemical Properties
- Chemical Formula
- Sr2Fe2+(Fe2+,Mg)2Al4(PO4)4(OH)10
- Elements
- Al, Fe, H, O, P, Sr
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Lulzacite FAQs
How do I identify Lulzacite?
Lulzacite can be identified by its hardness of 5.5 - 6 on the Mohs scale, Greyish-green color. Look for these key characteristics when examining specimens.
What color is Lulzacite?
Lulzacite typically appears in Greyish-green. Color can vary depending on impurities and formation conditions.
How hard is Lulzacite?
Lulzacite has a hardness of 5.5 - 6 on the Mohs scale. This gives it moderate hardness.
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