Inesite
Image: Robert M. Lavinsky (CC BY-SA 3.0)
Mineral NameInesite
Chemical FormulaCa₂Mn₇(Si₁₀O₂₈)(OH)₂·5H₂O
Mohs Hardness5.5
Crystal Systemtriclinic
Lustervitreous
Streak Colorwhite
Cleavageperfect on {100}, good on {010}
Fractureuneven
Specific Gravity3.03
Colorspink, reddish-pink, orange-pink, brownish-pink, white
Transparencytranslucent
Type LocalityDaye County, Huangshi Prefecture, Hubei Province, China
Mineral GroupSilicates
Usescollector
Associated Mineralsrhodonite, rhodochrosite, bustamite, calcite, quartz
Rarityuncommon
Description
The image displays a specimen of inesite featuring radiating, bladed crystals with a distinct pink to orange-pink hue. The crystals form an attractive, fan-like aggregate.
Geological Context
Inesite is a hydrous calcium manganese silicate that typically forms in manganese-rich metamorphic or hydrothermal deposits. It is often found in association with other manganese minerals in low-temperature environments.
