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 free yet powerful program for cataloging mineral collections. It is a standalone application, so it has no dependencies (Access, Excel, SQL, etc.).

The result of over 20 years of thorough programming development.

System Requirements

Operating system: MS Windows from 7 to 11
Type of computer: Desktop and laptop
Screen resolution: At least 1280 x 1024
Some people run the app in macOS or Linux 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 (v. 4.6.8.25.12.27)

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.