Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

Mineral B

Aeschynite-(Ce)

Name

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(Ce,Ca,Fe,Th)(Ti,Nb)₂(O,OH)₆

Formula

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Mineral Species

Entry type

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Oxides & Hydroxides

Chemical class

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Orthorhombic

Crystal system

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5–6

Mohs hardness

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5.19

Specific gravity

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Nearly black to brown

Streak

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Submetallic, resinous to waxy; dull when altered

Luster

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{100}, interrupted; parting k {010} when nonmetamict

Cleavage

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Space group

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Aeschynite

Structural group

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Aes-Ce · Approved

IMA

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1830

Named in

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Black, brown, light brown to yellow; reddish brown to light brown in transmitted light

Typical colors

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Ce · Ca · Fe · Th · Ti · Nb · O · H

Elements

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