Uraninite Crystal Floater — Cardiff Uranium Mine, Cardiff Township, Ontario, Canada

A fine floater crystal of Uraninite from the Cardiff Uranium Mine in Cardiff Township, Haliburton County, Ontario — a rare and desirable form for this Canadian Grenville Province locality.

A floater is a crystal that developed free faces on all sides during growth, unattached to matrix, resulting in complete crystal development visible from every angle. Floater crystals are among the most prized forms in mineral collecting precisely because full three-dimensional development is far less common than matrix-attached specimens. Uraninite floaters with well-expressed crystal form are genuinely uncommon from any locality, and documented Canadian material of this quality is particularly scarce.

The Cardiff Mine sits within the classic Bancroft-Haliburton uranium district, one of Canada's most historically significant radioactive mineral regions. Specimens from this locality carry strong provenance for advanced collections focused on uranium mineralogy or Canadian mineral heritage.

Uraninite is a radioactive mineral. Suitable for advanced collectors and researchers with appropriate handling and storage knowledge.

Approx. specimen size: 11mm x 8mm x 7mm

Approx. specimen weight: 3.38 grams

Approx. specimen activity on an SE International Ranger EXP: 23000 CPM