pargasite
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- Mineral.name
- Pargasite
- Mineral.category
- Inosilicates
- Mineral.boxbgcolor
- 264d1c
- Mineral.boxtextcolor
- FFFFFF
- Mineral.image
- Pargasite-ww49d.jpg
- Mineral.caption
- Single crystal of pargasite, 1.5 cm long, on a matrix of white marble from Hunza Valley, Pakistan
- Mineral.formula
- NaCa2(Mg4Al)(Si6Al2)O22(OH)2
- Mineral.IMAsymbol
- Prg
- Mineral.strunz
- 9.DE.15
- Mineral.dana
- 66.1.3a.12
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/m
- Mineral.color
- Bluish green, grayish black, light brown
- Mineral.habit
- Stout prismatic to tabular
- Mineral.twinning
- Simple and lamellar – common
- Mineral.cleavage
- {110} perfect
- Mineral.fracture
- Splintery
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{{Infobox mineral | name = Pargasite | category = Inosilicates | boxwidth = | boxbgcolor = #264d1c | boxtextcolor = #FFFFFF | image = Pargasite-ww49d.jpg | caption = Single crystal of pargasite, 1.5 cm long, on a matrix of white marble from Hunza Valley, Pakistan | formula = NaCa2(Mg4Al)(Si6Al2)O22(OH)2 | IMAsymbol = Prg | strunz = 9.DE.15 | dana = 66.1.3a.12 | molweight = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = C2/m | color = Bluish green, grayish black, light brown | habit = Stout prismatic to tabular | twinning = Simple and lamellar – common | cleavage = {110} perfect | fracture = Splintery | mohs = 5–6 | luster = Vitreous | refractive = nα = 1.630 nβ = 1.640 nγ = 1.650 | opticalprop = Biaxial (−) | birefringence = δ = 0.020 max. | pleochroism = | streak = | gravity = 3.04–3.17 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Translucent, will transmit light on thin edges. | other = | references = }}
Pargasite or pargasitic hornblende is a complex inosilicate mineral of the amphibole group with formula NaCa2(Mg4Al)(Si6Al2)O22(OH)2.