hedenbergite
Sign in to saveHedenbergite, CaFeSi2O6 (), is the iron-rich end member of the pyroxene group having a monoclinic crystal system. The mineral is extremely rarely found as a pure substance, and usually has to be synthesized in a lab. It was named in 1819 after M.A. Ludwig Hedenberg, who was the first to define hedenbergite as a mineral. Contact metamorphic rocks high in iron are the primary geologic setting for hedenbergite. This mineral is unique because it can be found in chondrites and skarns (calc–silicate metamorphic rocks). As a member of the pyroxene family, it has generated considerable interest due to
Key facts
- Mineral.name
- Hedenbergite
- Mineral.category
- Inosilicate minerals (single chain)
- Mineral.group
- Pyroxene group, clinopyroxene subgroup
- Mineral.image
- Hedenbergite-Quartz-Hematite-54421.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- CaFeSi2O6 ()
- Mineral.IMAsymbol
- Hd
- Mineral.molweight
- 248.09 g/mol
- Mineral.strunz
- 9.DA.15
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/c
- Mineral.color
- Brownish green, black
- Mineral.habit
- Massive, prismatic crystals
- Mineral.cleavage
- Good on {110}
- Mineral.fracture
- Irregular
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 5.5–6.5
via Wikipedia infobox
Article
8 sectionsContents
- Properties
- Composition and structure
- Effects of chemical composition on elasticity
- Occurrence in chondrites
- Occurrence in skarns
- See also
- References
- External links
{{Infobox mineral | name = Hedenbergite | category = Inosilicate minerals (single chain) | group = Pyroxene group, clinopyroxene subgroup | image = Hedenbergite-Quartz-Hematite-54421.jpg | imagesize = 260px | caption = | formula = CaFeSi2O6 () | IMAsymbol = Hd | molweight = 248.09 g/mol | strunz = 9.DA.15 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = C2/c | color = Brownish green, black | habit = Massive, prismatic crystals | twinning = | cleavage = Good on {110} | fracture = Irregular | tenacity = Brittle | mohs = 5.5–6.5 | luster = Vitreous, dull | polish = | refractive = nα = 1.699 – 1.739 nβ = 1.705 – 1.745 nγ = 1.728 – 1.757 | opticalprop = Biaxial (+) | birefringence = δ = 0.029 | dispersion = r > v strong | pleochroism = Weak | fluorescence= | absorption = | streak = White, gray | gravity = | density = 3.56 g/cm3 | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent-Opaque | other = | references =
}}