Two bevelled, octahedral Cuprite crystals coated with a thin layer of Malachite. Both crystals are similar in size at 3.5 and 3.2 cm. Some areas of the backside show the bright red, translucent Cuprite when backlit. Ex. Irv Brown collection.

Large, glassy orange/red crystal of Red Cloud Wulfenite, reportedly from the Ed Over finds. This is a floater, well crystallized all around with the great color that made this mine famous. There are transparent sections in the crystals. Undamaged with minor amounts of attached Calcite on the back side. Ex. Irv Brown collection.

Rich blue Langite over matrix from the Mountain Mine in Ireland. This was part of Tim Sherburn's extensive Ireland collection. Though Tim had a number of Irish Langites in his collection, this was his display Langite, and you can see why. While other Langites in Tim's collection had similar rich blue color, they did not have the surface sparkle of this piece. This specimen was published in Tim's section of the 'Mineral Collections in California' special supplement of the Mineralogical Record (July-August 2017). Ex. Irv Brown collection.

Two transparent yellow Apatite crystals set in a matrix of bubbly translucent Chalcedony. Both crystals are in similar upright alignment, well terminated, and fully transparent gem quality. Although loose single crystals are commonplace, and even matrix pieces are relatively abundant, truely special pieces like this are not. Ex. Irv Brown collection.

Two flat, triangular crystals of vibrant, 'hot' pink Cobaltian Dolomite. Both the crystal size and color are excellent, with the largest crystal 2.7cm wide. The crystals sit upright on matrix and are well crystallized on the back side too. Ex. Irv Brown collection.

Brilliant orange Spessartine crystals coating Feldspar crystals and also the lower parts of an attached Smokey Quartz crystal. Great coverage of transparent Spessartine with crystals up to 7mm wide. Fine and undamaged example from a now closed locality. Ex. Irv Brown, Bob Reynolds collections.

Glassy orange/red crystals of Wulfenite on a Calcite rich matrix from the Red Cloud Mine. The specimen features larger crystals in a cluster and a 1cm 'window pane' crystal near the base. The crystals are orange to red in color, translucent with transparent sections.  There is also a unique, concentric, circular formation in the Calcite that looks like a short volcano, and slight purple coloration on the Calcite in areas. This is an old piece that according to Irv was collected in the 19th century. Ex. Irv Brown collection.

Bright metallic crystals of Pyrite from Butte forming a floater cluster crystallized all around. The crystals have surface striations and reach 2.1cm in size. Nothing but great undamaged crystals all around with minor amounts of Quartz crystals attached. Ex. Irv Brown collection and formerly in the Peter Bancroft collection.

Clusters of translucent purple Lepidolite with attached cranberry-red Tourmaline crystals. A single flat crystal of Albite adds to the aesthetic of the specimen. Ex. Irv Brown collection.

Rare specimen of Dioptase with Wulfenite from old finds in Angola. The Dioptase are transparent and the Wulfenite are thick and bipyramidal, reaching 1.3cm in size. The largest Wulfenite is on the front, with two additional crystals on the backside. This an older specimen from the Bob Reynolds collection (former curator of the San Bernardino County museum in California) and still has his old collection number on the back. No precise locality information was provided, but it's possibly from the Mavoio Mine in Uige Province. Ex. Irv Brown collection.