Minerals - Quarzo Diario

A daily journal of quartz and crystals

Crystal Clusters vs. Single Points: Which Specimen Should You Collect?

Mohs Hardness in Practice: Testing Minerals Without Damaging Specimens

Seasonal Guide to Rockhounding: Where to Search After Spring Thaw

What to Look for in Alpine Quartz Deposits: A Local Collector's Guide

How to Photograph Mineral Specimens with a Smartphone

Minerals

Minerals

Mohs Hardness in Practice: Testing Minerals Without Damaging Specimens

Mohs Hardness in Practice: Testing Minerals Without Damaging Specimens

Mohs hardness testing can identify minerals and narrow unknowns, but only if scratches are made on inconspicuous...

October 26, 2026

Fluorescent Minerals: What They Are and How to Test Them Safely

Fluorescent Minerals: What They Are and How to Test Them Safely

Fluorescent minerals absorb invisible ultraviolet light and hand it back as visible colour. Here is why that...

October 14, 2026

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