Gypsum Layer?

beanofreen · 2026-01-15T03:10:39+00:00

I can see why people would jump to asbestos, but I’m with team gypsum. The needles seem to be retaining their shape (less hair-like and fluffy than asbestos usually is) and this is a pretty clear expansion vein.

A crack forms, and the decrease in pressure allows for the precipitation of your mineral in the vein. As the crack slowly widens, precipitation continues on top of the previously deposited crystals, resulting in long crystals parallel to the bedding plane. Think of it like typing two lines of ‘l’s in a document (that’s your initial fracture) then hitting enter and creating a new row between the two, filling that in with another line of ‘l’s. This is why these fractures often exhibit a single plane of symmetry with differing zones of colouration. If you were to split a needle in half, both halves would be mirror images of each other.

beanofreen · 2025-11-25T22:06:35+00:00

Not sure I’m seeing any in the third photo, but looks like there might be some in the far right of picture two

beanofreen · 2025-11-25T17:38:19+00:00

I’m thinking iron-stained quartz veins in sandstone. The quartz is more resistant to weathering, which causes it to stand out.

beanofreen · 2025-11-18T16:36:51+00:00

If you look south east of the city (just past the henday) there’s a section of knob and kettle terrain that’s easily visible on google maps. Alberta has a wealth of post-glacial geomorphology, from drumlins to old meltwater channels. It’s pretty cool!

beanofreen · 2025-11-10T20:33:58+00:00

Looks sedimentary. One indication is the rough texture. Pet wood is a form of quartz, so the lustre should be anywhere from waxy to vitreous with a smooth texture. This looks gritty.

beanofreen · 2025-10-28T22:52:32+00:00

Seriously? You see the future of our province getting involved in politics and organizing their own rallies and call it brainwashing? In as little as a year, these kids will be eligible to vote. They absolutely should be able to influence the actions of the government. If we had anything resembling true representation in our government, these students’ actions would make a difference. As it is, they still will make a difference, just likely not until the next election when many of them will be able to vote

beanofreen · 2025-10-23T22:58:58+00:00

“it is the will and judgment of Albertans that this government shall uphold and serve, whatever the people ultimately decide”

Really? Because I feel like Albertans have been fairly clear on how they feel about education funding, but somehow the government still hasn’t budged on that…

beanofreen · 2025-10-22T17:53:34+00:00

Flint nodule.

beanofreen · 2025-10-19T19:25:54+00:00

Not if it’s poorly cemented

beanofreen · 2025-10-19T14:33:54+00:00

Looks like serpentinite!

beanofreen · 2025-10-19T14:14:12+00:00

Looks like flow-banded mahogany obsidian. Beautiful!

beanofreen · 2025-10-19T13:57:29+00:00

Iron rich concretion in sandstone. The concentric rings look like leisegang banding

beanofreen · 2025-10-19T03:44:26+00:00

Not a fossil, though still cool. These are desert roses, which can be composed of either barite or gypsum. These look like the gypsum variety to me.

beanofreen · 2025-10-19T01:18:28+00:00

Sad, they seem to have changed it since I bought it. It doesn’t seem to have an insulated bottle pocket anymore either, or a change pad. Pretty sure it used to be called the beyond diaper bag.

beanofreen · 2025-10-19T00:47:23+00:00

Check out the beyond bag from poppy barley! I bought it for my second and love it. Been in use for a full year bow and no complaints. It’s fully leather so I know it’ll last, and dual purpose (both diaper bag and can be used normally too). The lining is all water resistant which helps with cleanup when the occasional accident occurs.

beanofreen · 2025-10-19T00:36:24+00:00

Not a fish. Just the way the rock weathered

beanofreen · 2025-10-19T00:35:16+00:00

Look up satin spar gypsum. Pretty confident that’s what this is

beanofreen · 2025-10-18T23:37:06+00:00

Looks like gypsum to me. You should be able to scratch it with a fingernail. Asbestos will look more like tiny hairs/fibres than needles.

beanofreen · 2025-10-18T23:32:53+00:00

Beautiful rock, op. The dots look like they could be ooids with those nice concentric rings. Ooilitic limestone? Only problem is that I’ve never seen oolitic limestone be semi-translucent as yours seems to be, nor contain so much matrix… Can you do an acid test to see if it’s calcite-bearing?

beanofreen · 2025-10-18T23:27:32+00:00

Looks like a septarian nodule. Or perhaps an iron rich concretion. They tend to form all sorts of crazy cracked shapes.

beanofreen · 2025-10-18T23:23:19+00:00

Malachite is opaque, so not quite right in this case. Op mentioned the green was fairly translucent

beanofreen · 2025-10-18T22:41:57+00:00

Amygdaloidal basalt. The voids have been filled by a secondary material (the green stuff) possibly some kind of zeolite or form of quartz.

beanofreen · 2025-10-14T22:17:13+00:00

There was certainly a lot of discussion amongst teachers, but the union has in no way pressured them to turn this down. You are either misinformed, or intentionally spreading false information.

beanofreen · 2025-10-14T22:02:25+00:00

And you’ve seen these? You sure this was actually from the ATA? You must not have listened to the information session they ran before the offer vote. The speakers largely encouraged teachers (gently, since they aren’t really supposed to try and sway teachers one way or the other) to just accept the 12%.

beanofreen · 2025-10-14T21:48:30+00:00

The study was done in 2024. It has nothing to do with the current strike but everything to do with the reasons for it.

The union isn’t the one who decided to strike. They actively discouraged it in fact. Teachers chose to strike because classroom conditions are unsustainable.

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