Free software for cataloging mineral collections

See a different photo of this superb specimen

Pyrite & quartz, Huanzala mine, Peru, 61 mm, Carles Millan collection.

My Mineral Collection Catalog (MMCC)
(MMCC for short)

A robust and free program for cataloging mineral collections. It's an ad-free and standalone application, so it has no dependencies (like Access, Excel, SQL, etc.) to work.

The result of over 20 years of thorough programming development.

System Requirements

Operating system: MS Windows from 7 to 11, or macOS with Boot Camp-assisted Windows
Type of computer: Desktop and laptop
Screen resolution: At least 1280 x 1024
Some people run MMCC in macOS or Linux computers with VirtualBox, Parallels Desktop, VMware Fusion, Wine, or CrossOver.

Some Screenshots

Click to enlarge

(the data shown in these screenshots is not real)

Installing the app and testing it is the best thing you can do if you're not sure yet. All future upgrades are included, and there are no fees, ads, or donations.

Installer Download

Note that updating to the most recent version will preserve your existing database.

Download latest version (4.7.6.26.02.23)

MMCC in Catalan language

Don't be afraid to run the installer, even if Windows gives you some nonsense, annoying, and confusing messages that tell you not to.