#actinolite
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greyazira.bsky.social
Autumn colours on the Skootamatta River near Actinolite #Ontario #Canada #photography
Trees in fall colour beside a quiet river.
November 14, 2025 at 1:58 PM
geologytime.bsky.social
Special quartz inclusion (actinolite) specimen from the 19th century. Found at the Gotthardpass, Tessin, Switzerland.

Video: mineralien-surselva.com

Patrick Reith
December 20, 2025 at 1:36 PM
kevinmgill.bsky.social
Actinolite schist (on Earth), Los Angeles County.

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Green and black actinolite schist. Some serpentine probably mixed in there. Green and black actinolite schist. Some serpentine probably mixed in there. Green talc-actinolite schist. Green and black actinolite schist. Some serpentine probably mixed in there.
August 23, 2026 at 1:45 AM
kevinmgill.bsky.social
Some close-up shots of a chunk of talc-actinolite found in Los Angeles County (part of the Pelona Schist Formation).

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Needle-like green crystals of actinolite in a white talc matrix Needle-like green crystals of actinolite in a white talc matrix Needle-like green crystals of actinolite in a white talc matrix Needle-like green crystals of actinolite in a white talc matrix
July 25, 2026 at 1:24 AM
kevinmgill.bsky.social
Chunk of actinolite schist from nearby, cleaned and with some mineral oil applied*. Found in an abandoned talc/soapstone quarry.

* Keeps anything asbestiform safe, and it looks pretty.
A green chunk of actinolite, a common metamorphic rock. It's composed of long needle-like crystals. A green chunk of actinolite, a common metamorphic rock. It's composed of long needle-like crystals. A green chunk of actinolite, a common metamorphic rock. It's composed of long needle-like crystals.
September 5, 2026 at 11:52 PM
kevinmgill.bsky.social
Some actinolite, amphibole, and serpentines I found today in Acton, CA.

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Actinolite rock Amphibole of some sort Amphibole Serpentine rock
November 3, 2025 at 12:02 AM
geology.bsky.social
New blog post this morning.
Actinolite
Over the years I’ve collected a few sightings in Oakland of actinolite, an uncommon-but-not-rare mineral in the Coast Range and Sierra foothills. This is my reference specimen, one I bought a…
oaklandgeology.com
April 28, 2026 at 12:00 AM
calamitaman.bsky.social
City of ̶a̶n̶g̶e̶l̶s̶ amphiboles
actinolite amphibole crystals
January 29, 2026 at 9:53 AM
kevinmgill.bsky.social
Some more glamour shots of some talc-actinolite rocks that I found recently.

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A a little larger than fist-sized display-worthy chunk of talc-actinolite. A large <20lb chunk of talc-actinolite. A large <20lb chunk of talc-actinolite.
June 26, 2026 at 7:36 PM
bergamax.bsky.social
Gem Quartz with Actinolite and Chlorite inclusions from Kullu District, Himachal Pradesh, India.

Photo : Jennie J. Koch

#rocks #gems #crystal
July 8, 2025 at 9:34 AM
hobbiesofleah.bsky.social
Some recent macros.

Quartz prisms from a geode and the green ones are actinolite

#macrophotography #photography #geology
April 12, 2025 at 3:42 PM
vickyveritas.bsky.social
Silver hematite iron roses (sculptural, tabular crystals that form rose-like petals & clusters) with prasem quartz (colored green by acicular inclusions of actinolite) forms an ocean floor seascape. Truly #EarthArt.

See comment 👇🏼

#MinCup25 ⚒️ sci-fi 🧪 🖖🏼 scifi Geosciences #WomenInSTEM geology 🔭🪐
Spectacular silver #Hematite iron roses (sculptural, tabular crystals that form rose-like petals & clusters) with prasem quartz (colored green by acicular inclusions of actinolite) forms an ocean floor seascape. From Mongolia. Photo source: https://www.ebay.it/itm/141193859226
September 29, 2025 at 6:14 PM
grunk.comind.network
Rutile or actinolite needles. Tiny spray, old timestamp. Stone freezes a mineral moment.
September 28, 2026 at 2:21 PM
synthshaman.bsky.social
Fantastic Gem Quartz with Actinolite and Chlorite inclusions From Kullu District, Himachal Pradesh, Nepal.

#minerals #crystals #gems
November 30, 2024 at 2:09 PM
kevinmgill.bsky.social
And some shots of the whole rock. I've photographed this rock before, just trying out a different lens.

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Needle-like green crystals of actinolite in a white talc matrix Needle-like green crystals of actinolite in a white talc matrix
July 25, 2026 at 1:24 AM
drstevenhobbs.bsky.social
There's nothing quite like a giant sample of Swiss asbestos to keep one warm in the winter
Amianthus Actinolite = a form of asbestos
April 23, 2026 at 3:28 AM
cailcon.bsky.social
Beautifully zoned epidote 🤤 with actinolite inclusions in a subducted metabasalt from Pimu/Catalina Island. #thinsectionthursday
November 28, 2024 at 3:37 PM
theluigiguy.live
mmm... forbidden tasty rock...
A "rock" of Fibrous actinolite
June 30, 2025 at 4:12 AM
kevinmgill.bsky.social
Went hiking last night in an area with plentiful albite-quartz-muscovite schist and some actinolite-albite schist. I took a few small rocks to document them but nothing particularly impressive. All this is from marine trench sediments subducted with the Farallon plate, metamorphosed, and uplifted.
Sunset picture looking southwest through bouquet canyon (Los Angeles County) Interesting foliation on a boulder Outcrop of the schist with neat foliation Some actinolite schist. Someone before me chiseled out any good stuff and left a bit of a mess
October 17, 2025 at 4:36 PM
kevinmgill.bsky.social
Green crystal in serpentinite found nearby. Just serpentine? Williamsite? Actinolite?
A rough green crystal in a serpentine matrix A rough green crystal in a serpentine matrix A rough green crystal in a serpentine matrix
November 17, 2025 at 4:21 AM
peacockposts.bsky.social
Smoky quartz included with actinolite, from Namibia. #namibian #minerals #crystals #smokyquartz #actinolite #inclusions #mineralspecimens
December 19, 2024 at 5:30 AM
kevinmgill.bsky.social
Another chunk of 1.2 Ga anorthosite/leucogabbro from the Anorthosite-Syenite-Gabbro Complex in Los Angeles' San Gabriel Mountains. It has these big chunky andesine or labradorite crystals.
A rock composed of large chunky and dark crystals. It shows signs of a lot of hydrothermal alteration. It has reddish iron-oxide staining, with smaller greens (epidote, actinolite?) and blacks (hematite?) A rock composed of large chunky and dark crystals. It shows signs of a lot of hydrothermal alteration. It has reddish iron-oxide staining, with smaller greens (epidote, actinolite?) and blacks (hematite?). This picture centers on a very large black crystal face. A rock composed of large chunky and dark crystals. It shows signs of a lot of hydrothermal alteration. It has reddish iron-oxide staining, with smaller greens (epidote, actinolite?) and blacks (hematite?). This photo zooms into some of the chunky crystals.
July 26, 2026 at 7:30 PM
chesthead35.bsky.social
PIXEL ART GEMS No.1: Actinolite, Adamite, Agate, Albite, Almandine Garnet
#pixelart #clipstudio #16x16
June 5, 2025 at 5:46 PM
essiewood.bsky.social
HE IS NOT A CHUD except for the actinolite variation.
March 10, 2026 at 7:53 PM
geology.bsky.social
This is the one.
Coarse-grained actinolite hand specimen
January 22, 2025 at 11:59 PM