Monthly Archives: September 2014

Pentagonite & Cavansite

Whilst shopping at my favourite shop, Kremer Pigmente for some aerinite, I came across a mineral pigment I did not know, and obviously just had to buy it. It is called pentagonite, and Kremer indicate that it is sourced in … Continue reading

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Orpiment is an arsenic sulphide that was used as a yellow pigment …

… and so that made me think it would be a good title for this occasional blog on pigments and minerals in the arts, with occasional diversions into urban geology and history. I’m a geologist who has worked on pigments … Continue reading

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