Field Report
Dispatches from the bench and the field — mineral science, identification notes, and the stories behind each specimen we turn into apparel.
Best Gifts for Geology Students for Christmas
Shopping for a geology student? Discover 15 useful and fun geology gift ideas, from field notebooks and mineral guides to geological maps, specimens, and mineral-inspired T-shirts.
Read the field report →All dispatches
8 ENTRIESWhat Is an Isomorph in Mineralogy?
An isomorph is a mineral or chemical compound with a crystal structure similar to another substance despite differences in chemical...
What Causes Fluorescence in Fluorite? The Science Explained
Discover what causes fluorite to fluoresce under UV light, including the roles of europium, rare-earth elements, crystal defects, and luminescent...
Opalization: How Precious Opal Forms and Gets Its Color
Discover how opalization forms precious opal, from silica-rich water moving through rock to the microscopic structures responsible for opal's famous...
Best Gifts for Geology Graduates: 10+ Thoughtful Ideas
Looking for a meaningful graduation gift for a geology graduate? Explore thoughtful ideas from mineral specimens and field guides to...
10 Unique Geology Gift & Gift Ideas for Christmas
10 Unique Geology Apparel & Gift Ideas for Christmas Most "geology gifts" are novelty rocks and pun mugs. The good...
Amazonite: Feldspar Coloration and Origin
Amazonite's blue-green color made it a prized ornamental stone long before mineralogists understood what actually causes it.