Large Partial Thorite Crystal — Kemp Prospect, Cardiff Township, Ontario, Canada

An exceptional and extremely large partial Thorite crystal from the Kemp Prospect near Cardiff Township in Ontario's Bancroft-Haliburton region, the world-renowned Grenville Province mineral district. Weighing an impressive 412 grams, this is a significant cabinet specimen representing one of the largest single Thorite crystals available on the collector market.

Thorite is a rare thorium silicate mineral found primarily in granitic pegmatites and syenites. The Kemp Prospect is a documented collecting locality within the Precambrian metamorphic terrain of the Grenville Province, known for producing exceptional uranium and thorium mineral specimens. Material of this size from this locality is genuinely uncommon.

Thorite is a radioactive mineral. This specimen is suitable for advanced collectors and researchers with appropriate storage and handling knowledge. Sold as a natural mineral specimen for collection, display, and educational purposes.

This specimen comes from my personal collection, and is the largest Thorite crystal I have ever come across.

Specimen Details:

Approx. specimen size: 100mm x 100mm x 40mm

Approx. specimen weight: 412.23 grams

Approx. specimen activity on an SE International Ranger EXP: 47000 CPM

Radioactive Mineral Shipping Policy

All naturally radioactive mineral specimens are available for shipping within Canada only. Due to Transport Canada dangerous goods regulations and Canadian Nuclear Safety Commission requirements, we cannot ship radioactive materials internationally. All specimens are packaged in accordance with excepted quantity guidelines and clearly labeled. Purchasers are responsible for ensuring they are legally permitted to possess radioactive mineral specimens under applicable provincial and federal regulations. If you have questions about a specific specimen's activity level or shipping eligibility, please contact us before purchasing.