mineral general info

Origin: Dal'negorsk, Primorskiy Kray, Russia

Sample size: 6 x 5 x 4.5 cm

Photo courtesy of:

Tom Loomis

Datolite with quartz

Origin: Dalnegorsk, Primorskiy Kray, Russia

Sample size: 8.5 x 8 x 4 cm (top), 3.3 x 3 x 2 cm (2nd row), 11 x 8 x 7.5 cm (3rd row), 7.3 x 4.5 x 4 cm (4th/bottom row)

Photo courtesy of:

Rob Lavinsky

Origin: Delaware Mine, Keweenaw County, Michigan, U.S.A.

Ex. Keith Hayes collection

Sample size: The green nodule is 1.6 x 1.4 x 0.8 cm. the pink one is 2.3 x 1.6 x 1.2 cm.

Origin:

Sample size:

Photo courtesy of:

John Veevaert, Trinity Mineral Co