File:Actinolite_Portugal.jpg · Wikimedia Commons · See Wikimedia Commons
actinolite
Sign in to savethumb|upright=0.3|Gem-quality actinolite blade, from Mogok, Burma
Key facts
- Mineral.boxbgcolor
- 987630
- Mineral.name
- Actinolite
- Mineral.boxtextcolor
- fff
- Mineral.category
- Inosilicates
- Mineral.image
- Actinolite Portugal.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Actinolite crystal from Portugal
- Mineral.formula
- Ca2(Mg4.5-2.5Fe2+0.5-2.5) Si8O22(OH)2
- Mineral.IMAsymbol
- Act
- Mineral.strunz
- 9.DE.10
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/m
- Mineral.color
- pale to dark green, yellowish green, blue and black. White or grey when in asbestos
- Mineral.habit
- bladed, fibrous, radial
- Mineral.twinning
- simple or lamellar
- Mineral.cleavage
- perfect along {110}.
- Mineral.fracture
- uneven
via Wikipedia infobox
Wikidata facts
- Image
- Actinolite Portugal.jpg
Show 6 more facts
- IMA Mineral Symbol
- Act
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.DE.10
- Nickel-Strunz 9th edition (updated 2009)
- 9.DE.10
- Commons category
- Actinolite
- chemical formula
- Ca₂(Mg,Fe)₅[OH|Si₄O₁₁]₂
- Strunz 8th edition (series ID, updated)
- VIII/D.05b
Sources (3)
via Wikidata · CC0
~3 min read
Article
6 sectionsContents
- Etymology
- Mineralogy
- Occurrence
- Gemology
- See also
- References
{{Infobox mineral |boxbgcolor=#987630| name = Actinolite | boxtextcolor = #fff | category = Inosilicates | image = Actinolite Portugal.jpg | imagesize = 260px | alt = | caption = Actinolite crystal from Portugal | formula = Ca2(Mg4.5-2.5Fe2+0.5-2.5) Si8O22(OH)2 |IMAsymbol=Act | molweight = | strunz = 9.DE.10 | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = C2/m | color = pale to dark green, yellowish green, blue and black. White or grey when in asbestos | habit = bladed, fibrous, radial | twinning = simple or lamellar | cleavage = perfect along {110}. | fracture = uneven | mohs = 5–6 | luster = vitreous to dull | polish = vitreous | refractive = nα = 1.613–1.628 nβ = 1.627–1.644 nγ = 1.638–1.655 | opticalprop = Biaxial (−) | 2V = 78–82° (calc), 84–73° (meas) | dispersion = r < v | birefringence = 0.0250–0.0270 | pleochroism = moderate, yellow to dark green (in stones that are transparent) | fluorescence= inert | absorption = faint line at 503 nm | streak = white | gravity = 3.00 (+0.10, -0.05) | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = translucent to transparent | other = |references = }}
thumb|upright=0.3|Gem-quality actinolite blade, from Mogok, Burma