An actual leaf is covered with liquid metal that burns off the membrane of the leaf, but leaves the skeleton of the leaf intact and then ...
This fossil is amazing. The color and condition are spectacular, as is the patterns in the specimen.
Apple Green Calcite. Each piece is approx. 2"" x 2"" x 1"". Calcite is truly one of the best collection type minerals.
Location: Angola 1, Sibindi, Cercle Nioro Do Sahel, Kayes Region, Mali
A. Lincoln Sherk MD collected 11/12/1939
Gypsum forms concretions of selenite blades called desert roses or sand roses, growing in sediments that are subjected to concentrated brines.
Gypsum forms concretions of selenite blades called desert roses or sand roses, growing in sediments that are subjected to concentrated brines.
Gypsum is a soft mineral, hydrous calcium sulfate. Gypsum is the standard for hardness degree 2 on the Mohs mineral hardness scale.
This is a nice little piece of clear Gypsum, also known as Selenite.
This piece has a great color contrast and looks great! There is very light, unnoticeable damage to some of the crystals.
If you look at this very nice hematite, you will see my hand and camera reflected. That is how shiney this hematite is.
Location: Patagonia, Argentina
This Piece of Hematite Pseudomorph after Magnetite is in amazing condition.
This Piece of Hematite Pseudomorph after Magnetite is in amazing condition.
Location: Patagonia, Argentina
Unfortunately in order to show the great crystal structure in the picture I had to sacrifice showing the amazing shine covering the entire piece. ...
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.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
Location: Mapimi, Mexico
This is an another uncommon combination of hemimorphite in a red bed of carminite.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
This is a nice specimen from the classic location at Mapimi, Mexico. The rosasite really adds nice color and contrast and displays well.
A very unique combination of hemimorphite, conichalcite, and smithsonite. Need a loop to see the smithsonite.
A. Lincoln Sherk MD. collection 1890s-1969
Calcite," which gets its name from ""chalix"" the Greek word for lime", is a most amazing and yet, most common mineral.
This is some of the most fluorescent hyalite opal that I have ever seen.
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 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 ...
Jeremejevite is listed as one of the 10 rarest stones on the earth.
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 ...
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 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 ...
Each piece of Kyanite is similar to the ones pictured. Kyanite is a polymorph with two other minerals; andalusite and sillimanite.
These Lamna obliqua Shark's Tooth from the Eocene Epoch are 37.5 to 54 million years old.
THIS IS 33% off the original price. A classic from the yukon. Minimal contact damage only with good crystals.
