A beautiful specimen of Prehnite coated with a clear Apophyllite and hosting numerous rectangular Apophyllite crystals. The crystals are transparent, gemmy, and a few are quite large, which contribute to this piece's amazing glassy luster. A showy piece, in excellent condition. Location: Mumbai, Maharashtra, India Size: 20.5...

This is a very large, unusual and rare plate of intergrown Mordenite balls. I simply haven’t seen anything quite like it. Mordenite is considered one of the rarer Zeolites, yet there’s still plenty around - but a plate like this - not so much....

This piece really caught my eye - the contrast of course is amazing. But to see a cavity filled with a spray of Malachite crystals in perfect condition makes for an unusual and rare piece. Location: Kerrouchen, Morocco Size: 11 x 9.5 x 9.5 cm

A large specimen of fibrous Malachite. The rare “leafy”-like crystals, formed from dense intergrowths of tiny, “fibrous” needles, create a stunning visual with a silky luster and dominate the piece both front and back. In excellent condition. Location: Katanga Province, Zaire Size: 14 x 11.5 x...

An amazing piece with quartz crystals everywhere of all sizes. What makes this huge piece particularly interesting is the large cavity on the right side filled with crystals throughout. From Manikaran, Kullu Valley, India - in the Himalayas - thus often referred to as...

Large plate of turquoise blue botryoidal Hemimorphite - great color with a nice silky luster - beautiful piece! Location: Yunan Province, China Size: 12 x 9.5 x 5 cm

Incredibly aesthetic specimen from the famed Elmwood Mine in Tennessee. It boasts a beautiful well formed Fluorite crystal on lustrous Sphalerite. Even the Sphalerite is translucent, showing a deep amber color under lighting. The Fluorite crystal is complete, deep purple, exhibits some stepped growth,...

This is a stunning piece featuring an intense deep purple stepped Fluorite crystal perfectly set on a matrix of microcrystalline Quartz from the famous Zogno mine (known locally as Camissinone mine), Bergamo, Italy. Upon closer inspection you’ll see multiple miniature Fluorite crystals scattered throughout...

This large piece is a great representative specimen from the famous Rogerley Mine, UK locality. The crystals are transparent, lustrous and gemmy green, practically covering the entire matrix. The crystals are in perfect condition and many are twinned. Location: Rogerley Mine, Frosterley, County Durham, England...

This piece is a great representative specimen from the famous Rogerley Mine, UK locality. The crystals are transparent, lustrous and gemmy green, with many twinned, covering the front and center of the contrasting matrix. The crystals are grouped nicely and aesthetically and are accompanied by...

This extra-large piece is a great representative specimen from the famous Rogerley Mine, UK locality. The crystals are transparent, lustrous and gemmy green, practically covering the entire matrix. I especially like the numerous cavities that are filled with Fluorite crystals. The crystals are in...

A beautiful, deep purple stepped Fluorite specimen from the Denton Mine in Illinois. This large piece has lighter purple, almost clear in one area, zoning near the very bottom, transforming to deep purple zoning throughout the rest of the piece. Exceptional piece and in...

This large specimen is from a new find in China. It is a deep, translucent green (see the backlit pic) with sub-botryoidal formation - it began with botryoidal formation and subsequently developed discernible crystals over the entire surface. Stunning piece and no damage. Location: Hunan,...

This piece has some great contrast - transparent, gemmy light green Fluorite stepped cubic crystals with some manganoan calcite crystals on a drusy Quartz. The entire specimen sparkles! No damage. Location: Jiangxi, China Size: 15 x 10 x 6 cm

Lustrous, deep green, transparent to translucent crystals of Dioptase in two main pockets - front and side. Great contrast and in excellent condition.  Location: Altyn-Tyube Mine, Karagandy Province, Kazakhstan Size: 13 x 7.5 x 8.5 cm

There are countless Zeolites out there, but not many that have this combination and perfection. With two pristine Stilbite crystals sitting centered next to a flawless, large, transparent water-clear pyramidal Apophyllite crystal on top of numerous smaller gemmy Stilbite crystals all on a contrasting...

This large plate is covered with exceptional Stilbite and Apophyllite crystals. The contrast between the pearly Stilbite and the glassy, transparent Apophyllite crystals is eye-catching, and the entire piece sparkles. A great piece, no damage. Location: Jalgaon, Maharashtra, India Size: 15 x 11 x 6 cm...

This is an incredible piece. A very large, beautiful spray of Cavansite sandwiched in-between two plates of micro crystalline Stilbite (Look at the size of the quarter which is in front and then the size of the Cavansite - it’s unusually large). You won’t...

Great contrast - there is of course the golden, almost transparent lenticular Calcite crystals on a matrix covered with miniature white translucent scalenohedral Calcite crystals. If that’s not enough, near the front you’ll see Stibnite crystals intermixed with the matrix. Great piece with no...

This piece has one large, amber colored, translucent, complex Calcite crystal with a soft, waxy luster (due to the striations noticeable on the closeup pic) situated on a bed of smaller like-colored Calcite crystals. I have rarely seen a Calcite crystal this flawless and...

A large plate of several complex Calcite crystals on a bed of calcite covered matrix. The Calcite crystals are translucent to transparent, with a pearly luster and a slight amber hue - incredible piece! No damage. Location: Hechi, Guangxi, China Size: 18 x 12.5 x 6...

A large, iridescent and translucent vein of gemmy opal running through brown sandstone. What an eye-catcher! Location: Maynside/Opalton, Queensland, Australia Size: 6.5 x 6.5 x 3.5 cm

A large, iridescent and translucent vein of gemmy opal running through brown sandstone. What an eye-catcher! Location: Maynside/Opalton, Queensland, Australia Size: 6.5 x 6 x 6 cm

A large, iridescent and translucent vein of gemmy opal running through brown sandstone. The purple-hued opal in the center of the vein is particularly appealing. What an eye-catcher! Location: Maynside/Opalton, Queensland, Australia Size: 10 x 6.5 x 5 cm

I really like this piece not only for the beautiful spray of Barite, but more for the contrast and aesthetics. Usually Barite sprays are attached (if at all) to a small incidental amount of matrix as a result of separation from the matrix in...

This is a very fascinating form of Lepidolite - the outside perimeter of the crystal is more-or-less lavender while the inside is translucent to transparent. A beautiful and interesting show piece, especially when back-lit. Location: Itinga, Minas Gerais, Brazil Size: 12 x 7 x 1 cm...

A single, large transparent tabular barite crystal sitting perfectly on a Dolomite matrix. I just haven’t seem many of these lately, especially this size, so was thrilled to be able to pick one up and make it available. In great condition. Location: Huánuco Department, Peru...

A beautiful piece loaded with  golden tabular rhombohedral Barite crystals. The crystals are numerous, transparent and gemmy and the piece is in excellent condition. Location: Meidle Mine, Bootstrap District, Elko County, Nevada, USA Size: 17.5 x 10 x 8 cm

This is a really interesting piece. This has a single, large, well formed beautiful complete Azurite crystal sitting all by itself on a sandstone matrix. The contrast really sets it apart. The crystal is a translucent deep blue as seen by the backlit pic....

This is a beautiful and unusual piece with a background of rich green Malachite hosting some deep blue Azurite clusters (crystal aggregates). Rare and incredibly aesthetic, you have to see it in person to truly appreciate the beauty of this piece. No damage. Location: Bou...