A stellar, natural top blue without any enhancement. The color of tanzanite is fantastic, in fact remarkable for the epidote group. To see through its prism, a lighter shade of windex blue is beneficial to transmit light and this one is just right.

S23455 – Zoisite

A stellar, natural top blue without any enhancement. The color of tanzanite is fantastic, in fact remarkable for the epidote group. To see through its prism, a lighter shade of windex blue is beneficial to transmit light and this one is just right.

This sequence of double pseudomorph in two shades of malachite after azurite, along with lime-green arsentsumebite is remarkably rare from the famous mine. The eye-catching effect goes a long way with such a piece.

S22947 – Malachite

This sequence of double pseudomorph in two shades of malachite after azurite, along with lime-green arsentsumebite is remarkably rare from the famous mine. The eye-catching effect goes a long way with such a piece.

This is a quality specimen of Brazilian magnetite, not only for its remarkably bright metallic faces, but for overall sharpness, displaying defined octahedral crystals in chlorite. Now fairly uncommon, this material came out in the early 1990s. Ex Mike Groben collection

S18338 – Magnetite

This is a quality specimen of Brazilian magnetite, not only for its remarkably bright metallic faces, but for overall sharpness, displaying defined octahedral crystals in chlorite. Now fairly uncommon, this material came out in the early 1990s. Ex Mike Groben collection

This pleasing rose-pink smithsonite is particularly colorful and shows excellent form, with exposed and isolated crystals. Pink smithsonite is a signature mineral from the famous Tsumeb mine in Namibia, and to have such quality crystals popping from matrix is stellar.

S22938 – Smithsonite

This pleasing rose-pink smithsonite is particularly colorful and shows excellent form, with exposed and isolated crystals. Pink smithsonite is a signature mineral from the famous Tsumeb mine in Namibia, and to have such quality crystals popping from matrix is stellar.

This smithsonite specimen emits stunning contrast and high quality of primary “rice grain” habit that largely compliment it. A much rarer style of smithsonite and unusual to see without replaced dolomite in cabinet size. Older material and an excellent lining of glistening quartz in pristine condition.

S22519 – Smithsonite

This smithsonite specimen emits stunning contrast and high quality of primary “rice grain” habit that largely compliment it. A much rarer style of smithsonite and unusual to see without replaced dolomite in cabinet size. Older material and an excellent lining of glistening quartz in pristine condition.

A superb fluorite featuring glossy and vibrant cubes to 2.5 cm on edge. This high-quality, especially clear twin comes complete with typical zoning. Pristine front and slightly contacted back.

S23548 – Fluorite

A superb fluorite featuring glossy and vibrant cubes to 2.5 cm on edge. This high-quality, especially clear twin comes complete with typical zoning. Pristine front and slightly contacted back.

This is an unusually fine and superb display of metallic, blue-black covellite crystals. They are bright, iridescent crystals in absolutely pristine condition. They are also nicely exposed and well separated for a vein filling sulfide. This piece was likely extracted during the 1970’s, and eventually ended up in the collection of Al McGuinness, accompanied by his label and a bit of interesting history. If tilted slightly it measures 3.3 cm without damage.

S18125 – Covellite

This is an unusually fine and superb display of metallic, blue-black covellite crystals. They are bright, iridescent crystals in absolutely pristine condition. They are also nicely exposed and well separated for a vein filling sulfide. This piece was likely extracted during the 1970’s, and eventually ended up in the collection of Al McGuinness, accompanied by his label and a bit of interesting history. If tilted slightly it measures 3.3 cm without damage.

This absolutely pristine pyromorphite from China is as good as it gets for a miniature, with its enticing green crystals aesthetically strewn on a sliver of matrix. A modern classic of the finest quality to come from the famous Daoping mine.

S23257 – Pyromorphite

This absolutely pristine pyromorphite from China is as good as it gets for a miniature, with its enticing green crystals aesthetically strewn on a sliver of matrix. A modern classic of the finest quality to come from the famous Daoping mine.

This specimen is from a distinctive pocket of nicely mixed smithsonite and rosasite. A glowing and saturated smithsonite of sharp crystals that is loaded with gem quality. A signature specimen from Tsumeb with intact crystals.

S21735 – Smithsonite

This specimen is from a distinctive pocket of nicely mixed smithsonite and rosasite. A glowing and saturated smithsonite of sharp crystals that is loaded with gem quality. A signature specimen from Tsumeb with intact crystals.

Gold and collectors go well together, and this beautifully crystallized wire is somehow more appealing and interesting than normal. This is an exquisite miniature of Venezuelan gold. A gold with style and taste. The golden-yellow luster and texture has great displayability.

S20315 – Gold

Gold and collectors go well together, and this beautifully crystallized wire is somehow more appealing and interesting than normal. This is an exquisite miniature of Venezuelan gold. A gold with style and taste. The golden-yellow luster and texture has great displayability.