How do I identify Carbokentbrooksite?

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

What color is Carbokentbrooksite?

Carbokentbrooksite typically appears in yellow, orange-yellow. Color can vary depending on impurities and formation conditions.

How hard is Carbokentbrooksite?

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

Carbokentbrooksite

A variety of Minerals

What is Carbokentbrooksite?

Carbokentbrooksite is a very rare mineral of the eudialyte group, with formula (Na,[])12(Na,Ce)3Ca6Mn3Zr3NbSiO(Si9O27)2(Si3O9)2(OH)3(CO3)H2O. The original formula was extended to show the presence of cyclic silicate groups and silicon at the M4 site, according to the nomenclature of eudialyte group. Carbokenbrooksite characterizes in being carbonate-rich (the other eudialyte-group species with essential carbonate are zirsilite-(Ce), golyshevite, and mogovidite). It is also sodium rich, being sodium equivalent of zirsilite-(Ce), with which it is intimately associated.

Carbokentbrooksite Market Value Calculator

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

Carbokentbrooksite Localities Map

See where Carbokentbrooksite 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 Carbokentbrooksite

Carbokentbrooksite and zirsilite-(Ce) are found as replacements of grains and crystals of eudialyte. They occur in pegmatites of Darai-Pioz alkaline massif, Tajikistan - a locality known for many rare minerals. The minerals are associated with aegirine, ekanite, microcline, polylithionite, quartz, stillwellite-(Ce) (silicates), pyrochlore-group mineral, fluorite, calcite, and galena.

Quick Facts

Physical Properties

Color: yellow, orange-yellow
Hardness (Mohs): 5
Density: 3.14 g/cm³
Streak: white

Chemical Properties

Chemical Formula: (Na3Na3Na3Na3Na3)Ca6(VMn2+3)Zr3[Si3O9]2[Si9O27SiO][Si9O27Nb(OH)3](CO3)(H2O) The formula was previously given here as: Na11-12(Na,Ce)3Ca6Mn3Zr3Nb(Si3O9)2(Si9O27)2SiO3(CO3).H2O The updated formulation attempts to better illustrate structural relationships to other members of the group (and is also charge-balanced).
Elements: C, Ca, H, Mn, Na, Nb, O, Si, V, Zr

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