How do I identify Raslakite?

Raslakite can be identified by its hardness of 5 on the Mohs scale, brownish red color. Look for these key characteristics when examining specimens.

What color is Raslakite?

Raslakite typically appears in brownish red. Color can vary depending on impurities and formation conditions.

How hard is Raslakite?

Raslakite has a hardness of 5 on the Mohs scale. This gives it moderate hardness.

Raslakite

A variety of Minerals

What is Raslakite?

Raslakite is a rare mineral of the eudialyte group with the formula Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)SiO(Si9O27)2(Si3O9)2(OH,H2O)3(Cl,OH). This formula is based on the original one, and is extended to show the presence of cyclic silicate groups. The additional silicon and oxygen shown in separation from the cyclic groups (in parentheses) are in fact connected with two 9-fold rings. The mineral has lowered symmetry (space group R3, instead of more specific for the group R3m one), similarly to some other eudialyte-group members: aqualite, labyrinthite, oneillite and voronkovite. The specific feature of raslakite is, among others, the presence of sodium and zirconium at the M2 site. Raslakite was named after Raslak Cirques located nearby the type locality.

Raslakite Market Value Calculator

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

Raslakite Localities Map

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

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North ZoneCentral RidgeSouth Basin

Key Characteristics

Formation of Raslakite

Raslakite was discovered, together with ikranite, in peralkaline pegmatites of the Mt. Karnasurt, Lovozero massif, Kola Peninsula, Russia. Raslakite is associated with aegirine, fluorcaphite, kazakovite, lamprophyllite, microcline, nepheline, and terskite.