Featured specimens for sale
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Olive-green Pyromorphite from the Daoping Mine in China
Daoping Mine, Gongcheng, Guilin, Guangxi
199 PLN (~$50 USD)
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Purple-red Erythrine on matrix from Aghbar Mine in Morocco
Aghbar Mine, Aghbar, Tansifte Caïdat, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region
89 PLN (~$22 USD)
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Dark Blue Azurite with Malachite from Milpillas Mine
Milpillas Mine, Milpillas, Santa Cruz Municipality, Sonora
499 PLN (~$125 USD)
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Ruby in White Marble from Afghanistan
Jegdalek ruby deposit, Surobi District, Kabul
99 PLN (~$25 USD)
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Copper Adamite from Ojuela Mine in Mexico
Ojuela Mine, Mapimí, Mapimí Municipality, Durango
149 PLN (~$37 USD)
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Red Rutile with Hematite and Quartz from Salzburg
Salzburg
189 PLN (~$47 USD)
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Smoky Quartz Crystal from Switzerland
Switzerland
89 PLN (~$22 USD)
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Olive-green Epidote from Skardu in Pakistan
Skardu
99 PLN (~$25 USD)
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Shiny black-brown crystal of cassiterite from Bolivia
Viloco Mine (Araca Mine), Loayza Province, La Paz
99 PLN (~$25 USD)
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Light Blue Aquamarine Crystal on Quartz from Pakistan
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339 PLN (~$85 USD)
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Light Green Apophyllite Crystal from Aurangabad, India
Aurangabad, Maharashtra
59 PLN (~$15 USD)
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Apophyllite Crystals with Red Inclusions from India
Aurangabad Maharashtra
49 PLN (~$12 USD)
Collector Panel
From the first specimen. Hobby free up to 500 (plan limit, not a minimum). Hideable fields: short form or full depth. Cloud cataloging, print-ready PDF labels, AI descriptions, public sharing, statistics. Offline Field Mode and Quick Capture on Curator / Curator+. Not museum CMS.
Mineral knowledge base
A free encyclopedia of species: chemistry, crystallography, type localities, Strunz and Dana classification.
- Fluorotaramite -
Na(NaCa)(Mg<sub>3</sub>Al<sub>2</sub>)(Si<sub>6</sub>Al<sub>2</sub>)O<sub>22</sub>F<sub>2</sub> - Nepouite -
Ni<sup>2+</sup><sub>3</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub> - Potassic-richterite -
(K,Na)(CaNa)<sub>2</sub>Mg<sub>5</sub>[Si<sub>8</sub>O<sub>22</sub>](OH,F)<sub>2</sub> - Potassic magnesio-arfvedsonite -
KNa<sub>2</sub>Mg<sub>4</sub>Fe<sup>3+</sup>Si<sub>8</sub>O<sub>22</sub>(OH)<sub>2</sub> - Sal ammoniac -
N<sup>3-</sup>H<sub>4</sub>Cl - Krutaite -
Cu<sup>2+</sup>(Se<sub>2</sub>)<sup>2-</sup> - Potassic-hastingsite -
KCa<sub>2</sub>(Fe<sup>2+</sup><sub>4</sub>Fe<sup>3+</sup>)(Si<sub>6</sub>Al<sub>2</sub>)O<sub>22</sub>(OH)<sub>2</sub> - Fluoro-tremolite -
☐Ca<sub>2</sub>Mg<sub>5</sub>Si<sub>8</sub>O<sub>22</sub> F<sub>2</sub> - Cerussite -
Pb<sup>2+</sup>CO<sub>3</sub> - Olivenite -
Cu<sup>2+</sup><sub>2</sub>As<sup>5+</sup>O<sub>4</sub>(OH)
Frequently asked questions
Why is it called Cabinet No. 40?
"Cabinet" refers to collector display cabinets - mine were multiplying quickly as my mineral collection grew. The number 40 came from my 40th birthday, which I was celebrating at the time. It has nothing to do with kitchen furniture or a government cabinet - it means mineral display cabinets and my original private collector profile.
Where do Cabinet No. 40 specimens come from?
Worldwide, with a focus on Polish localities (Lower Silesia, Tatra Mountains), native copper from Dzhezkazgan in Kazakhstan and classic European species. Every specimen lists its exact locality.
Do you follow IMA nomenclature?
Yes, strictly. All mineral names follow the IMA-CNMNC list with correct spelling (e.g. "matrix" never "matryca"), chemical formulas and mineral groups.
How does shipping work?
Poland: InPost lockers or courier, free over 300 PLN. International: European Union only via FedEx Economy. Every specimen is packed individually in cotton wool and collector boxes.
Can I return a specimen?
Yes, 14-day no-questions-asked return under EU consumer law.
What is the Collector Panel?
Our in-house app for cataloging private mineral collections from the first specimen. Hobby free up to 500 (plan limit, not a minimum). Hideable fields. You add photos and data; the system generates print-ready PDF labels and AI descriptions. Not museum CMS. Offline Field Mode on Curator / Curator+.
Does every specimen come with a certificate?
Every specimen has a full database record with locality, size and weight. Higher-value pieces ship with extra collector cards.