epidote
Sign in to saveEpidote is a calcium aluminium iron sorosilicate mineral.
Key facts
- Mineral.name
- Epidote
- Mineral.category
- Sorosilicates
- Mineral.boxbgcolor
- 79941d
- Mineral.boxtextcolor
- white
- Mineral.image
- Эпидот(пушкинит).jpg
- Mineral.imagesize
- 290px
- Mineral.formula
- {Ca2}{Al2Fe3+}(SiO4)(Si2O7)O(OH)
- Mineral.IMAsymbol
- Ep
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H–M symbol)
- Mineral.symmetry
- P21/m
- Mineral.color
- Pistachio green, yellow-green, greenish black, brownish-green, green, black
- Mineral.habit
- Prismatic with striations, fibrous, massive
- Mineral.twinning
- On [100]
- Mineral.cleavage
- {001} perfect and {100} imperfect
- Mineral.fracture
- Flat regular to uneven
- Mineral.mohs
- 6–7
- Mineral.luster
- Vitreous to resinous
via Wikipedia infobox
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{{Infobox mineral | name = Epidote | category = Sorosilicates | boxwidth = | boxbgcolor = #79941d | boxtextcolor = white | image = Эпидот(пушкинит).jpg | imagesize = 290px | caption = | formula = {Ca2}{Al2Fe3+}(SiO4)(Si2O7)O(OH) | IMAsymbol = Ep | molweight = | system = Monoclinic | class = Prismatic (2/m) (same H–M symbol) | symmetry = P21/m | color = Pistachio green, yellow-green, greenish black, brownish-green, green, black | habit = Prismatic with striations, fibrous, massive | twinning = On [100] | cleavage = {001} perfect and {100} imperfect | fracture = Flat regular to uneven | mohs = 6–7 | luster = Vitreous to resinous | refractive = nα = 1.715–1.751 nβ = 1.725–1.784 nγ = 1.734–1.797 | opticalprop = Biaxial (-) | birefringence = δ = 0.019–0.046 | pleochroism = Strong | streak = Greyish white | gravity = 3.38–3.49 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to nearly opaque | other = | references = }}
Epidote is a calcium aluminium iron sorosilicate mineral.