Prehnite & Epidote, Mali

Olmite

Kalahari Manganese Fields 

Northern Cape Province South Africa  6 x 4.5 x 4 cm

Rocky Mountain Gems and Minerals 

Cluster of large emerald-green Dioptase crystals on matrix. The two largest dioptase crystals are 0.9 inches long. Luster is vitreous. Crystals are rhombohedral shape. The specimen is from the Kaokoveld plateau in Namibia.

MOSASAURUS Tooth with sharp edges, good tip. The bottom provides a good view of the enamel. This tooth is from late Cretaceous age, about 70 million years ago. Length is 1.6 inches. Slight wear on both edges.

Beautiful cluster of green TSAVORITE which is a variety of GROSSULAR (Garnet). The translucent Tsavorite crystals are on a matrix of silvery Graphite. The largest Tsavorite crystal is 0.4 inches. Green color is from traces of chromium. Luster is vitreous.  This specimen is from the type locality of Merelani Hills, Tanzania.

High quality MOSASAURUS Tooth with sharp edges, perfect tip. The bottom provides a good view of the enamel and dentin. This tooth is from late Cretaceous age, about 70 million years ago. Length is 1.8 inches. Slight wear on one edge.

A neat sample of Shattuckite from Kandesi in the Kaokoveld Plateau of Namibia.

Sturmanite, N’Chwaning Mine, Kalahari Manganese Field, South Africa

Yellow Prehnite crystal cluster from the Merelani Hills, Manyara Region, Tanzania.

Vanadinite from the small ‘Orange Crush’ Pocket, Mibladen, Khenifra Province, Morocco, mined in April of 2016. This pocket had orange to brownish-red crystals with a lustrous metallic chatoyancy, and uncommon stepped crystal form. The next Mineralogical Record is set to have an article about this exceptional, very small find.
​Measures 3.3 x 3 x 2.6 cm.