Notes on fine mineral specimens.
Olemina is a curator of fine mineral specimens. The Journal collects what we’ve learned about provenance, care and the localities that define each species — written to help you buy, keep and live with them.
How to Display Mineral Specimens at Home (Like a Gallery)
Learn how to display crystals at home like a gallery: side-light rather than flat light, a dark matte background, natural pairing materials, and room for your best specimen…
Why Locality Matters: Provenance in Fine Mineral Collecting
Locality and provenance shape a specimen's authenticity, scarcity and price. Mine-level documentation, named pockets and old collection labels separate a defensible, resaleable piece from an anonymous, unverifiable rock.
Treated or Natural? How to Tell If a Mineral Specimen Has Been Enhanced
Heating, irradiation, dyeing, coating and stabilising are the common mineral treatments. None of them is automatically a problem, but undisclosed treatment is — here is how to tell,…
Mineral Specimen Sizes Explained: Thumbnail, Miniature, Cabinet
Mineral specimen sizes run from thumbnail to museum scale. Here is what thumbnail, miniature, small cabinet and cabinet actually mean, how they are measured, and which size suits…
Are Fine Mineral Specimens a Good Investment?
Fine mineral specimens can appreciate, but only the top tier rewards it: rare, undamaged, well-provenanced pieces from significant localities. Here is what genuinely drives value, which pieces tend…
What Makes a Fine Mineral Specimen? The 6 Things Collectors Look For
A fine specimen is judged on six things together — crystal form, colour, lustre, condition, rarity and provenance — not on size alone, which only ever matters once…
How to Start a Fine Mineral Collection: A Beginner’s Guide
Start with one clear focus, buy fewer but genuinely better pieces, and learn to judge crystal form, colour, condition and provenance before you ever look at the price…