Ferrisepiolite

(Fe³⁺,Fe²⁺,Mg)₄[(Si,Fe³⁺)₆O₁₅](O,OH)₂·6H₂O

Phyllosilicate mineral

Properties

Chemical formula
(Fe³⁺,Fe²⁺,Mg)₄[(Si,Fe³⁺)₆O₁₅](O,OH)₂·6H₂O
Group
Silicates
Crystal system
Orthorhombic
Hardness (Mohs)
2–2,5
Color
—
Luster
—
Streak
White
Density
—
Cleavage
—
Fracture
—
Tenacity
—
Crystal habit
—
Transparency
—
Space group
52
Fluorescence
—
Magnetism
—
Radioactivity
—
Refractive index
—
Optical character
—
Birefringence
—
Pleochroism
—
Strunz classification
9.EE.
Dana classification
—
IMA status
Approved mineral and/or valid name (A)
IMA symbol
Fsep
Locality
🇨🇳 Saishitang Mine
Type locality
—
Discovery year
—

Etymology

Named after iron(III)

Source: Wikidata

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