Double Ultra Hematitic Rose Rock | Oklahoma dendrite 5" x 3" and weighs

5" x 3" and weighs 11 oz

They are made of red mudstone and siltstone and can contain minerals like quartz

this fluorite comes alive with bright purple fluorescence

A classic Brazilian pegmatite specimen featuring black tourmaline crystals embedded within a matrix of quartz and feldspar

25” and weighs 15

Double Ultra Hematitic Rose Rock | Oklahoma dendrite 5" x 3" and weighsThese dark red violet rose rocks consist of sandy crystals of barite (barium sulfate) in petal like clusters that resemble a rose in full bloom. These specimens are richer in iron than normal barite roses, giving them their unique coloring. Deposited approximately 250 million years ago during the Permian Period. The rose rocks are found in Oklahomas Garber sandstone formations. Because the barite is more durable than the sandstone, the rosettes erode