Printable Geode Localities Chart

This one-page geode identification chart is for rock collectors, teachers, and hobbyists who want a quick reference to well-known geode regions. It lists each region, the typical interior found there, and the host rock type. The rows cover Keokuk area in Iowa, Illinois, and Missouri; southern Brazil and northern Uruguay; and Chihuahua, Mexico. A short note reminds users to check land ownership and collecting rules before visiting.

Free printable · PDF

1 page
US Letter — choose “Fit to page” for A4
PDF, 98 KB

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Free for personal, family and classroom use.

Need to edit it? The full pack has the editable Excel and Word files plus all 7 sheets — $6.00, one-time.

Use it as a field handout, classroom reference, or binder page when sorting geodes or planning a collecting trip. Compare the region, interior, and rock type columns to match your specimen to a likely source area. Keep the collecting note in mind before any visit to a site.

Good for

Identify common geode source regions
Support geology lessons on geodes
Plan collecting trips responsibly

Tip: Print on cardstock and keep it in a field notebook or specimen binder.

7 files · PDF, XLSX, DOCX

Get every sheet: Geode Identification Chart Pack

This sheet plus 6 more in one download, with the editable Excel and Word files. Geode ID chart, is-it-a-geode checklist, localities sheet, cracking guide, Mohs hardness card, field log workbook and specimen labels.

$6.00 USD, one-time 7 files · about $0.86 each