particulate-matter
question:particulate-matter

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Author Comment Last activity Moderation
gretchengehrke "Also, its interesting that cristobalite is rounded. I will look in the literature to see if there is a relationship between cristobalite and silico..." | Read more » over 6 years ago
gretchengehrke "I'm glad you brought this up, @Ag8n! @Mathew did some work with polarimetry too. See this research note: https://publiclab.org/notes/mathew/05-21-2..." | Read more » over 6 years ago
gretchengehrke "Thank you so much, @Ag8n! This is exactly what I was hoping to see. I live near Duke University and can see if they have the books there too. Does ..." | Read more » over 6 years ago
Ag8n "See below These are photos taken from" the particle atlas", second edition, volume II, by mccrone. " | Read more » over 6 years ago
Ag8n "I checked the images. There are pictures of quartz and several for cristobalite. Didn't see one for tridymite. " | Read more » over 6 years ago
Ag8n "I'm no expert on microscopy. Did mess with it a little. The difference I notice is a lot of the work is done with crossed polars- messing with th..." | Read more » over 6 years ago
gretchengehrke "We've been trying to use DIY microscopes to distinguish between crystalline and non-crystalline particulate matter. Of course we wouldn't be able t..." | Read more » over 6 years ago
warren "Wow, would you be able to share an image of "respirable silica"? I'm thinking of how to unpack answers to these questions: https://publiclab.org/q..." | Read more » over 6 years ago
Ag8n "I do have a copy of edition two, which is four volumes. Volume 1 goes over microscopes, volume 2 gives pictures of the different materials, and vo..." | Read more » over 6 years ago
warren "This is fantastic - do you have a copy or could we find a copy and share pictures especially of silica particles? " | Read more » over 6 years ago
Bronwen "Maybe also: type of light source, image size/resolution, any relevant sample treatment/preparation/suspension. This might not be exactly the rubri..." | Read more » over 6 years ago
liz "Perhaps someone is familiar with the metadata captured by commercial microscopes? Off the top of my head, i'd start brainstorming: date who capt..." | Read more » over 6 years ago