Orlymanite

Photo: Leon Hupperichs · CC BY-SA 3.0

Orlymanite

Orlymanite

Ca₄Mn²⁺₃Si₈O₂₀(OH)₆·2H₂O

Phyllosilicate mineral

Properties

Chemical formula
Ca₄Mn²⁺₃Si₈O₂₀(OH)₆·2H₂O
Group
Silicates
Crystal system
Hexagonal
Hardness (Mohs)
Color
Luster
Streak
Density
Cleavage
Fracture
Tenacity
Crystal habit
Transparency
Space group
Fluorescence
Magnetism
Radioactivity
Refractive index
Optical character
Birefringence
Pleochroism
Strunz classification
9.EJ.15
Dana classification
73.2.2b.2
IMA status
Approved mineral and/or valid name (A)
IMA symbol
Orl
Locality
🇿🇦 Wessels mine
Type locality
Discovery year

Etymology

Named after Orlando Hammond Lyman

Source: Wikidata

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