Reederite-(y)

Reederite-(Y)

A variety of Minerals

What is Reederite-(y)?

Reederite-(Y) is a rare mineral with the formula (Na,Mn,Fe)15(Y,REE)2(CO3)9(SO3F)Cl. It is the only known mineral with fluorosulfate (fluorosulfonate). "REE" in the formula stands for rare earth elements other than yttrium, that is mostly cerium, with traces of neodymium, dysprosium, lanthanum and erbium. The formula also includes a Levinson suffix "-(Y)" pointing to the dominance of yttrium at the corresponding site. Reederite-(Y) crystallizes in the hexagonal crystal system with the space group P6, rarely seen among minerals.

Reederite-(y) Market Value Calculator

Estimate the market value of Reederite-(y) using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Preview only. Full pricing comps and valuation report in the app.

Reederite-(y) Localities Map

See where Reederite-(y) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Color
Yellow to orange-brown
Hardness (Mohs)
3 - 3.5
Streak
White

Chemical Properties

Chemical Formula
(Na,Mn)15Y2(CO3)9(FSO3)Cl
Elements
C, Cl, F, Mn, Na, O, S, Y
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