This is a massive plate hosting countless miniature Prehnite stalactites or “fingers.” These are not epimorphs where the Prehnite covers the original mineral and the original mineral subsequently dissolves leaving a hollow cast, but rather solid Prehnite stalactites. A very unusual and even rare...

Pristine, translucent, “bubbly” (globular) formations of light-green Prehnite with a silky luster on contrasting matrix. A very unique piece - in excellent condition. Location: Prospect Park, New Jersey, USA Size: 9.5 x 8.5 x 3.5 cm

An aesthetic specimen featuring numerous intergrown spherical formations of translucent mint-green prehnite. These Prehnite spheres are aggregates of slender, radiating crystals clearly seen in the closeup of a contacted sphere on the back. This is a classic specimen and “floater” in excellent condition. Location: Tsumeb,...

A large, highly translucent specimen featuring numerous mint-green Prehnite crystals in interconnected clusters. The crystals are distinct and create a sparkly luster due to the numerous crystal faces. Great piece in excellent condition. Location: Tsumeb, Namibia Size: 13 x 4.5 x 9 cm

A large specimen featuring a druze of mint-green, translucent Prehnite pseudomorph after (replaced) well-defined tabular crystals of Calcite. This is an unusual (some say rare) find and there’s not a lot of it out there. This piece is very aesthetic and has no damage....

A beautiful and extremely aesthetic specimen featuring mint-green Prehnite epimorphs after elongated Laumonite crystals (the Laumontite formed first, was overgrown with Prehnite, then the Laumontite dissolved leaving the Prehnite in the shape of the Laumontite crystals) completely coated with lustrous miniature translucent, colorless Apophyllite...

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...

A beautiful specimen of Prehnite coated with a clear Apophyllite and hosting numerous rectangular Apophyllite crystals. The crystals are transparent and gemmy. There are also numerous Gyrolite spherical aggregates (ok, Gyrolite balls, just didn’t like the sound of that . . . ) for...

A large specimen featuring numerous spherical formations of translucent green prehnite on dark green Epidote crystals. These Prehnite spheres are aggregates of slender, radiating crystals clearly seen in the closeup of a contacted sphere. This is a very fine specimen with excellent color and...

A spherical nodule of golden-metallic Pyrite crystals. The nodule is covered on all sides with Pyrite crystals. Very unique formation and in excellent condition. Location: Otjihase Mine, Von Francois Farm 60, Windhoek Rural, Khomas Region, Namibia Size: 3.8 x 3.2 x 2.5 cm

A vary large, lustrous cluster of intersecting Pyrite cubo-octohedral crystals. The crystals are large and well formed with complex surface textures which make for a unique and aesthetic piece. The metallic luster is mirror-like and exceptional. A great piece in excellent condition. Location: Huanzala Mine,...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 4 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a large 3 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 4 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 4 cm Pyrite cube. There are two minor contacts (the one on top...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a huge 3.7 cm Pyrite cube, and it is perfect - just amazing! Location: Navajun, Spain...

Pyrite cubes never get old - they are completely natural, and thus a favorite of collectors. This particular piece hosts two large intersecting Pyrite cubes - both perfect and just amazing! The perfect cubic formation, metallic luster and contrast with the matrix makes for...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts a 2.5 cm Pyrite cube and a large 3 cm intergrown cube - both perfect...

Pyrite cubes never get old. There are some that insist these things are fabricated, but they are completely natural, and thus a favorite of collectors. This particular piece hosts 3 lustrous Pyrite cubes, 3 cm, 2.5 cm and 2 cm., all in excellent condition. Great piece!...

Translucent apple-green crystals of Pyromorphite cover this piece on all sides, with a particularly rich and dense cluster of Pyromorphite perfectly centered. Beautiful specimen in excellent condition. Location: Daoping Yansuo, Guangxi, China Size: 9 x 6.5 x 4.5 cm

This is a large, beautiful and striking piece that features a vuggy Quartz matrix hosting numerous clusters of translucent, lustrous apple-green Pyromorphite crystals throughout the piece. There are Pyromorphite crystals on all sides of the matrix. There is a particularly dense band of Pyromorphite...

A superb specimen of lustrous, apple-green hexagonal Pyromorphite crystals with flat terminations on a contrasting Limonite. Pyromorphite crystals this large (over 1 cm) and well formed are the exception rather than the rule. Outstanding contrast and crystal formation. A beautiful specimen in excellent condition....

A small but aesthetic and colorful specimen of lustrous, apple-green Pyromorphite crystals on a contrasting Limonite. The Pyromorphite crystals are well formed and exceptionally lustrous. A beautiful specimen in excellent condition. Location: Daoping Mine, Gongcheng Co., Guilin, Guangxi, China Size: 5.5 x 4 x 5 cm...

This piece hosts several clusters of apple-green Pyromorphite crystals. There is one cluster (top right) where the crystals all seem to have interconnected making an unusual solid mass (irregular aggregate) that I haven’t seen before, yet makes for an amazingly intense color and “greasy”...

I know, you see Quartz and think to yourself, “big deal.” Well first of all, this is big, like huge. But what really impressed me was the perfection of all five crystal terminations, particularly the main, forward crystal. And all natural, no polishing. Transparent,...

A large and extremely aesthetic cluster of translucent, snow-white elongated Quartz crystals on white bladed Albite and minor Pyrite. In addition to the dozen or so larger, elongated Quartz crystals, there are many more of smaller Quartz crystals filling in at the base. A unique,...

A beautiful and gemmy lustrous, transparent, water-clear Quartz crystal with a smaller diverging crystal at the base. Stunning and in pristine condition! Location: La Belleza Mine, Santander, Columbia Size: 2 x 1.5 x 7.5 cm

A large, beautiful and gemmy Quartz crystal - lustrous, transparent and water-clear with a pristine termination. In excellent condition! Location: Minas Gerais, Brazil Size: 6 x 5.5 x 9 cm

A large cluster of pristine, lustrous, glassy, transparent Quartz crystals. These Quartz pieces from Columbia are special - the luster, clarity and symmetry is outstanding. In excellent condition. Location: Santander, Columbia Size: 11 x 7 x 7.5 cm

A very large, elongated plate of pristine, lustrous, glassy, transparent Quartz crystals. These Quartz pieces from Columbia are special - the luster, clarity and symmetry is outstanding. In excellent condition. Location: La Belleza Mine, Santander, Columbia Size: 22 x 9 x 7 cm