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Minerals - Todorokite | TerraCollect

Mineral - Todorokite

Todorokite(Na,Ca,K,Ba,Sr)¹⁻x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O

Chemical Properties

Mineral Class

Oxides and Hydrxides

Toxicity

none

Formula

(Na,Ca,K,Ba,Sr)¹⁻x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O

Unit Cell

Physical Properties

Hardness

1.5

Streak

brown

Density

Optical Properties

Color

blackbrowngray

Birefringence

Luster

Greasy,

Metallic,

Waxy

Transparency

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Cleavage

Fracture

Tenacity

Point Group

Space Group

Habit

dendritic, fibrous, massive, acicular, radial

Formation

Sekundär, Metasomatose, Sedimentär

Paragenesis

Twinning

Rarity

Rarely

Synonyms

Todorokite