These Lamna obliqua Shark's Tooth from the Eocene Epoch are 37.5 to 54 million years old.
Each piece of Kyanite is similar to the ones pictured. Kyanite is a polymorph with two other minerals; andalusite and sillimanite.
This Kyanite is a nice dark blue in a white and black Schist matrix. There is a little contact damage but otherwise the crystals are beautifully ...
This is an amazing gem crystal of kunzite that shocked me when I first saw it, because it is as clear as glass - not silky like most kunzites, but ...
This is an Opal from Koroit Australia. It has splashes of red and green opal in channels through the matrix. It has been set by Cranston in 14 kt ...
Jeremejevite is listed as one of the 10 rarest stones on the earth.
This is a very cool piece. The iridescence takes place on the defined octahedral crystals, but on the base, where the contact was, it is the usual ...
South African minerals are always a wonderful part of a great collection. This specimen has very minimal damage and would provide a nice addition to ...
This is some of the most fluorescent hyalite opal that I have ever seen.
Calcite," which gets its name from ""chalix"" the Greek word for lime", is a most amazing and yet, most common mineral.
A. Lincoln Sherk MD. collection 1890s-1969
A very unique combination of hemimorphite, conichalcite, and smithsonite. Need a loop to see the smithsonite.
This is a nice specimen from the classic location at Mapimi, Mexico. The rosasite really adds nice color and contrast and displays well.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
This is an another uncommon combination of hemimorphite in a red bed of carminite.
Location: Mapimi, Mexico
A superb specimen of Hemimorphite. The large spray of crystals are about 1 inch in length.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
