Lorenzenite
A variety of Minerals
What is Lorenzenite?
Lorenzenite is a rare sodium titanium silicate mineral with the formula Na2Ti2Si2O9 It is an orthorhombic mineral, variously found as colorless, grey, pinkish, or brown crystals. It was first identified in 1897 in rock samples from Narsarsuk, Greenland. In 1947 it was discovered to be the same as the mineral ramsayite (now a synonym of lorenzenite), discovered in the 1920s in the Kola peninsula of Russia. It is also found in northern Canada. It occurs in nepheline syenites and pegmatites in association with aegirine, nepheline, microcline, arfvedsonite, elpidite, loparite, eudialyte, astrophyllite, mangan-neptunite, lavenite, rinkite, apatite, titanite and ilmenite. It was named in honor of Danish mineralogist Johannes Theodor Lorenzen (1855–1884).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Lorenzenite 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.
Lorenzenite Localities Map
See where Lorenzenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale purple-brown, pale pink to mauve, brown to black
- Hardness (Mohs)
- 6
- Density
- 3.44 g/cm³
- Streak
- White to pale brown
Chemical Properties
- Chemical Formula
- Na2Ti2(Si2O6)O3
- Elements
- Na, O, Si, Ti
Also Known As
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Lorenzenite FAQs
How do I identify Lorenzenite?
Lorenzenite can be identified by its hardness of 6 on the Mohs scale, Pale purple-brown color. Look for these key characteristics when examining specimens.
What color is Lorenzenite?
Lorenzenite typically appears in Pale purple-brown, pale pink to mauve, brown to black. Color can vary depending on impurities and formation conditions.
How hard is Lorenzenite?
Lorenzenite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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