mineralia

Gazing into my boulder Opal ring

propaedeuticist asked: maybe lunarfossils' specimen has some kinda of agate growth or hematite layer. I've seen both of those minerals coat another botryoidal mineral. Hematite has a thinner slicker sheen or a dusty texture. Agate has a shallow chalky translucency so in person it would be easier to tell if it's either of them.

Thanks for the answer :)

pilot-of-middle-earth asked: Regarding the question you were asked earlier, about that reddish/brown globular mineral, to me it looks like Hematite (Fe2O3) formed in a hydrothermal mineral vein as quartz is a common mineral also found in mineral veins. Hematite can be found in globular formations, also known as Kidney ore, similar to the small formations in the picture and has a range of colors from Brown, various reds, steel grey and to black. I may be wrong but I hope this information is useful! Thanks for the great blog!

I love your thorough answer! While I have no idea if you’re right, I’m posting this :)

ianborthwick asked: Dioptase, those beautiful greens!!

Ah I know! And the formations are beautiful.

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